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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_IncomeTaxesIncludingExciseTaxesAmountRounded_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income taxes including excise taxes amount rounded</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_IncomeTaxesIncludingExciseTaxesAmountRounded_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Taxes Including Excise Taxes Amount Rounded</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_IncomeTaxesIncludingExciseTaxesAmountRounded_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Income taxes including excise taxes amount rounded.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfCapitalGainIncentiveFeePriorToExchangeListing_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of capital gain incentive fee prior to exchange listing</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfCapitalGainIncentiveFeePriorToExchangeListing_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage of Capital Gain Incentive Fee Prior to Exchange Listing</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfCapitalGainIncentiveFeePriorToExchangeListing_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of capital gain incentive fee prior to exchange listing.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromShortTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Proceeds from Short-Term Debt, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromShortTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Short-Term Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromShortTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Borrowings on debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIssuerNameAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Issuer Name [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2024Q2DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">O 2024 Q2 Dividends.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2024Q2DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">O 2024 Q2 Dividends [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2024Q2DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividend Declared on June 28, 2024</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CarlyleGroupIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Carlyle Group Inc [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CarlyleGroupIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Carlyle group inc member.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CarlyleGroupIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Carlyle</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PharmaceuticalsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Pharmaceuticals.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PharmaceuticalsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Pharmaceuticals</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PharmaceuticalsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Pharmaceuticals [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityIncorporationStateCountryCode_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Incorporation, State or Country Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyRealizedAndUnrealizedGainLossOnInvestmentAndForeignCurrency_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain (Loss), Investment and Derivative, Operating, and Foreign Currency Transaction, before Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyRealizedAndUnrealizedGainLossOnInvestmentAndForeignCurrency_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Net Unrealized and Realized Gains (Losses)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyRealizedAndUnrealizedGainLossOnInvestmentAndForeignCurrency_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total unrealized and realized gains (losses)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyRealizedAndUnrealizedGainLossOnInvestmentAndForeignCurrency_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net realized gains (losses) on investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_HumanResourceSupportServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Human Resource Support Services [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_HumanResourceSupportServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Human Resource Support Services.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_HumanResourceSupportServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Human Resource Support Services</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_DiversifiedFinancialServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Diversified Financial Services [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_DiversifiedFinancialServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Diversified financial services.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_DiversifiedFinancialServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Diversified Financial Services</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCurrentReportingStatus_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Current Reporting Status</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherCommitment_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Other Commitment, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherCommitment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Commitment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherCommitment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other commitments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Financing Receivable [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class of Financing Receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfManagementFeesInExcessOfAverageAggregateDrawnCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of management fees in excess of average aggregate drawn capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfManagementFeesInExcessOfAverageAggregateDrawnCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage of Management Fees in Excess of Average Aggregate Drawn Capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfManagementFeesInExcessOfAverageAggregateDrawnCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of management fees in excess of average aggregate drawn capital.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInIncentiveFeePayableCapitalGainBased_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Incentive fees on net capital gains accrued to affiliate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInIncentiveFeePayableCapitalGainBased_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Incentive Fee Payable, Capital-Gain-Based</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableAmountPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends Payable, Amount Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableAmountPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividend per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingExpensesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Expenses [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingExpensesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialServicesSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Services Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialServicesSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial Services</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Level 2</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 2 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commitments and Contingencies</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2025Q3DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">O 2025 Q3 Dividends [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2025Q3DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">O 2025 Q3 dividends.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2025Q3DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">O2025 Q3 Dividends [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromDispositionOfInvestmentOperatingActivity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Disposition of Investment, Operating Activity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromDispositionOfInvestmentOperatingActivity_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Repayments on investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyFinancialHighlightsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Financial Highlights [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyFinancialHighlightsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Financial Highlights for One Share Common Stock Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares Authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common shares, authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Affiliated Issuer, Noncontrolled [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Non-controlled, Affiliated Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investments at Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Fiscal Period Focus</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Stated interest rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Interest Rate, Stated Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt instrument, interest rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingStandardsUpdate202309Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Standards Update 2023-09 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingStandardsUpdate202309Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">ASU 2023-09</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityShellCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Shell Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Segment Reporting</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Cash and Cash Equivalents, at Carrying Value, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash and cash equivalents (restricted cash of $52,929 and $47,671, respectively)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Cash and cash equivalents</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2024Q4DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">O 2024 Q4 Dividends [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2024Q4DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">O 2024 Q4 Dividends.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2024Q4DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">O2024 Q4 Dividends [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsNet_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel">Total Net Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Net Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Net Assets, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Net Assets, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncentiveFeePayableIncomeBased_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Incentive Fee Payable, Income-Based</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncentiveFeePayableIncomeBased_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Incentive fees on net investment income payable to affiliate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number of Common Shares Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Common stock, shares issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common shares, issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Statement [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_DividendsDeclaredDuringThePeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividends declared during the period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_DividendsDeclaredDuringThePeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends Declared During The Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_DividendsDeclaredDuringThePeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Dividends declared during the period.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_DividendsDeclaredDuringThePeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SubscriptionFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Subscription facility.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SubscriptionFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subscription Facility [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SubscriptionFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subscription Facility</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_RevolverMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revolver</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_RevolverMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revolver [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_RevolverMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Revolver.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2026Q1BaseDividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">O 2026 Q1 Base Dividends [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2026Q1BaseDividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">O 2026 Q1 base dividends member.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2026Q1BaseDividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">O2026 Q1 Base Dividends [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CapitalCommitmentsFromAffiliates_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Capital Commitments from Affiliates</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CapitalCommitmentsFromAffiliates_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Capital Commitments from Affiliates</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CapitalCommitmentsFromAffiliates_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Capital commitments from affiliates</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetailMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Retail</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetailMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retail [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetNetAmortizationOfDiscountOnInvestment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Net Amortization Of Discount On Investment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetNetAmortizationOfDiscountOnInvestment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net amortization of discount on securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest receivable</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeApproachValuationTechniqueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income Approach</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyInvestmentIncomeLossFromOperationsPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total from operations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyInvestmentIncomeLossFromOperationsPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Investment Income (Loss) from Operations, Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyInvestmentIncomeLossFromOperationsPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total from operations</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_TwoThousandThirtyNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Two thousand thirty notes.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_TwoThousandThirtyNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Two Thousand Thirty Notes [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIdentifierAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Identifier [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Statement [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFilerCategory_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Filer Category</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_OriginalIssueDiscountNetOfAccretion_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Original issue discount, net of accretion.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_OriginalIssueDiscountNetOfAccretion_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Original Issue Discount Net Of Accretion</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_OriginalIssueDiscountNetOfAccretion_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Original issue discount, net of accretion</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeGainLossStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Liabilities and Net Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Total Liabilities and Members' Equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Instrument [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Interest Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquitySecuritiesByIndustryAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Industry Sector [Axis]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_TwoThousandTwentyNineNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2029 Notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_TwoThousandTwentyNineNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Two thousand twenty nine notes.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_TwoThousandTwentyNineNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Two Thousand Twenty Nine Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ResistanceHoldingsIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Resistance Holdings, Inc. [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfAllRemainingPreIncentiveFeeNetInvestmentIncomeQuarterly_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of all remaining pre-Incentive Fee net investment income quarterly</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ShiftmoveGmbhMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Shiftmove gmbH.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesIssuedPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shares Issued, Price Per Share</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AzuriteIntermediateHoldingsIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Azurite Intermediate Holdings, Inc</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AzuriteIntermediateHoldingsIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Azurite Intermediate Holdings, Inc.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssetNotionalAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Notional amount to be sold</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ScheduleOfContributedCapitalAndUnfundedCommitmentsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Contributed Capital And Unfunded Commitments Table Text Block</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ScheduleOfContributedCapitalAndUnfundedCommitmentsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Contributed Capital and Unfunded Commitments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ScheduleOfContributedCapitalAndUnfundedCommitmentsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of contributed capital and unfunded commitments.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_SegmentGeographicalDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Geographical [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_SegmentGeographicalDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Geographical</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ChemicalsPlasticsAndRubberSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Chemicals, Plastics and Rubber Sector [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ElectronicsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Electronics.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ElectronicsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Electronics [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredFinanceCostsNet_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Deferred financing costs</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssetFairValueGrossLiability_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">Unrealized Appreciation/ (Depreciation)</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, Dividend Reinvestment Plan</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Computation of Basic and Diluted Earnings Per Common Share</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Name [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Distributions declared</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividends payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Earnings (loss) per common share - basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Earnings per common share-basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Earnings Per Share, Basic, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInManagementFeePayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Management Fee Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInManagementFeePayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Management fees payable to affiliate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_DeferredTaxLiabilityPertainingToNetUnrealizedGainsLossFromInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Tax Liability Pertaining To Net Unrealized Gains (Loss) From Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_DeferredTaxLiabilityPertainingToNetUnrealizedGainsLossFromInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Deferred tax liability pertaining to net unrealized gains (loss) from investments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_DeferredTaxLiabilityPertainingToNetUnrealizedGainsLossFromInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred tax liability pertaining to net unrealized gains or losses from investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AssetValuationWaterfallMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Asset Valuation Waterfall</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AssetValuationWaterfallMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Valuation Waterfall [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AssetValuationWaterfallMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Asset valuation waterfall.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_RevolverEquityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Revolver &amp; equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_RevolverEquityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revolver &amp; Equity [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_RevolverEquityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revolver &amp; Equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Issuance Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyTotalReturn_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total return based on net asset value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyTotalReturn_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Total Return</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevolvingCreditFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revolving Credit Facility [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevolvingCreditFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revolving Credit Facility</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Adjustments to reconcile increase (decrease) in net assets resulting from operations to net cash provided by (used in) operating activities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealizedGainLossInvestmentAndDerivativeOperatingAfterTaxAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Realized gains (losses):</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealizedGainLossInvestmentAndDerivativeOperatingAfterTaxAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Realized Gain (Loss), Investment, Derivative, and Foreign Currency Transaction, Operating, after Tax [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HedgingDesignationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Hedging Designation [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HedgingDesignationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Hedging Designation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_JointVentureInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Joint Venture Investments [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_JointVentureInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Joint venture investments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_JointVentureInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Joint Venture Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_JointVentureInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Investment in Joint Venture</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableDateOfRecordDayMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Record Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableDateOfRecordDayMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends Payable, Date of Record</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableDateOfRecordDayMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividends record date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyExpenseRatioBeforeIncentiveAllocation_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Ratio of net expenses to average net assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyExpenseRatioBeforeIncentiveAllocation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Expense Ratio before Incentive Allocation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyExpenseRatioBeforeIncentiveAllocation_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Ratio of net expenses to average net assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyExpenseRatioBeforeIncentiveAllocation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ratio of gross expenses to average net assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealizedGainLossInvestmentAndDerivativeOperatingAfterTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Foreign currency forward contracts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealizedGainLossInvestmentAndDerivativeOperatingAfterTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Realized Gain (Loss), Investment and Derivative, Operating, after Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealizedGainLossInvestmentAndDerivativeOperatingAfterTax_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Realized gains (losses) on foreign currency forward contracts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesPayableFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Notes Payable, Fair Value Disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesPayableFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DomesticCountryMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Domestic Tax Jurisdiction [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DomesticCountryMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">U.S. Federal Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TaxBasisOfInvestmentsGrossUnrealizedAppreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Tax Basis, Unrealized Gain</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TaxBasisOfInvestmentsGrossUnrealizedAppreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Estimated gross unrealized gains on tax cost investment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyNetAssetValuePerSharePeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total increase (decrease) in net assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyNetAssetValuePerSharePeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total increase (decrease) in net assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyNetAssetValuePerSharePeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Net Asset Value, Per Share, Period Increase (Decrease)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ScheduleOfComponentsOfInterestExpenseTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Components of Interest Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ScheduleOfComponentsOfInterestExpenseTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Components Of Interest Expense [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ScheduleOfComponentsOfInterestExpenseTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of components of interest expense.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Standards Update [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_DelayedDrawMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Delayed Draw</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_DelayedDrawMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Delayed Draw [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_DelayedDrawMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Delayed draw.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Attributable to Parent [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Changes in Fair Value of Investments Using Level 3 Inputs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntitySmallBusiness_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Small Business</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TrusteeFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Trustees' fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TrusteeFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Trustee Fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HedgingDesignationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Hedging Designation [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HedgingDesignationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Hedging Designation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MarketApproachValuationTechniqueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Valuation, Market Approach [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MarketApproachValuationTechniqueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Market Multiple</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MarketApproachValuationTechniqueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Comparable Market Price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Retained Earnings (Accumulated Deficit), Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retained Earnings (Accumulated Deficit)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Distributable earnings</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquitySecuritiesIndustryMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Industry Sector [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquitySecuritiesIndustryMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Industry Sector</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SpecifiedRelevantRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Specified relevant rate.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SpecifiedRelevantRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Specified Relevant Rate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SpecifiedRelevantRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Specified Relevant Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SixthStreetSpecialtyLendingIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sixth Street Specialty Lending, Inc. [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SixthStreetSpecialtyLendingIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Sixth Street Specialty Lending, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SixthStreetSpecialtyLendingIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sixth Street Specialty Lending, Inc.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfDividends_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Distributions paid</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossInvestmentAndDerivativeOperatingAfterTaxAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net change in unrealized gains (losses):</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AffiliatedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Affiliated [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AffiliatedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Affiliated.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AffiliatedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Affiliated</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AmendmentFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Amendment Flag</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingenciesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loss Contingencies [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingenciesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loss Contingencies [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_NortheastMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Northeast.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_NortheastMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Northeast [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_DiscoParentIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disco parent Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_DiscoParentIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disco Parent Inc [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Organization and Basis of Presentation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerSharePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Earnings (Loss) Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerSharePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerSharePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Earnings Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPaidInKindInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Paid-in-kind interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPaidInKindInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Paid In Kind Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPaidInKindInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fair value measurement with unobservable inputs reconciliation recurring basis asset paid-in-kind interest.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressPostalZipCode_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Postal Zip Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_BusinessServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Business services.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_BusinessServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Services [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_BusinessServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Business Services</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Operating Activity, Including Discontinued Operation</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_WithManagementFeeWaiverMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">With Management Fee Waiver [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_WithManagementFeeWaiverMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">With management fee waiver.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_WithManagementFeeWaiverMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">With Management Fee Waiver [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_TransportationCargoSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Transportation Cargo Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_TransportationCargoSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Transportation cargo sector.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_LineOfCreditFacilityMaximumBorrowingCapacityUnderCertainCircumstances_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Line of credit facility maximum borrowing capacity under certain circumstances</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_LineOfCreditFacilityMaximumBorrowingCapacityUnderCertainCircumstances_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility Maximum Borrowing Capacity Under Certain Circumstances</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_LineOfCreditFacilityMaximumBorrowingCapacityUnderCertainCircumstances_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Line of credit facility maximum borrowing capacity under certain circumstances.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ForestProductsAndPaperSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Forest Products and Paper Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ForestProductsAndPaperSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Forest products and paper sector.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ForestProductsAndPaperSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Forest Products &amp; Paper</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_UsaDebuskLlcMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">USA Debusk LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_UsaDebuskLlcMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">USA Debusk LLC.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_UsaDebuskLlcMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">USA Debusk, LLC</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingCodmProfitLossMeasureHowUsedDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Common Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendIncomeOperating_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividend income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendIncomeOperating_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividend Income, Operating</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendIncomeOperating_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Dividend Income, Operating, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_BanyanSoftwareHoldingLlcMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Banyan software holding, llc.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_BanyanSoftwareHoldingLlcMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Banyan Software Holdings, LLC</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfDebtDiscountPremium_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amortization of Debt Discount (Premium)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfDebtDiscountPremium_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accretion of original issue discount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfDebtDiscountPremium_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Amortization of discount on debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Secured Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Secured Debt, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Secured borrowings</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Senior Secured Loans</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Available For Sale Securities [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SMATechnologiesHoldingsLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">SMA Technologies Holdings, LLC</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SMATechnologiesHoldingsLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">S M A Technologies Holdings L L C [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SMATechnologiesHoldingsLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">S M A Technologies Holdings L L C.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_TruckLiteCoLlcMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Truck-Lite Co.,LLC</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_TruckLiteCoLlcMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Truck-Lite Co.,LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_TruckLiteCoLlcMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Truck-Lite Co., LLC</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SixthStreetLendingPartnersMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sixth Street Lending Partners</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SixthStreetLendingPartnersMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sixth Street Lending Partners [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SixthStreetLendingPartnersMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Sixth Street Lending Partners.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InsuranceMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Insurance.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InsuranceMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Insurance [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InsuranceMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Insurance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Address Line One</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ChangeInAccountingPrincipleAccountingStandardsUpdateImmaterialEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ChangeInAccountingPrincipleAccountingStandardsUpdateImmaterialEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Change in accounting principle, accounting standards update, immaterial effect [true false]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends Payable [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividends Payable [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Hierarchy and NAV [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Hierarchy and NAV</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Supplemental Cash Flow Information [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Supplemental Information:</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EventusBuyerLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Eventus Buyer, LLC.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CommitmentOfDistributions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Distributions</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SapphireSoftwareBuyerIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sapphire Software Buyer, Inc</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SapphireSoftwareBuyerIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Sapphire software buyer inc.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentType_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Document Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_StructuredCreditPartnersJVLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Structured Credit Partners JV, LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_StructuredCreditPartnersJVLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Structured Credit Partners JV, LLC.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TypeOfArrangementAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collaborative Arrangement and Arrangement Other than Collaborative [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_JulyTwoThousandThirtyNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">July 2030 Notes</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_JulyTwoThousandThirtyNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">July two thousand thirty notes.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfPreIncentiveFeeNetInvestmentIncomeHurdleRateQuarterly_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of hurdle rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfPreIncentiveFeeNetInvestmentIncomeHurdleRateQuarterly_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Pre Incentive Fee Net Investment Income Hurdle Rate Quarterly</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfPreIncentiveFeeNetInvestmentIncomeHurdleRateQuarterly_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of pre incentive fee net investment income hurdle rate quarterly.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ArrangementsAndNonarrangementTransactionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collaborative Arrangement and Arrangement Other than Collaborative [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Central Index Key</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SixthStreetAffiliatesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sixth Street Affiliates [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SixthStreetAffiliatesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Sixth Street Affiliates.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SixthStreetAffiliatesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sixth Street Affiliates</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Investments at Fair Value</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments, Debt and Equity Securities [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrimeRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prime Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrimeRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prime Rate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ForeignCurrencyTransactionGainLossRealized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Realized Gain (Loss), Foreign Currency Transaction, before Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ForeignCurrencyTransactionGainLossRealized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Foreign currency transactions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ForeignCurrencyTransactionGainLossRealized_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Transfers</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ForeignCurrencyTransactionGainLossRealized_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Foreign Currency Transaction Gain Loss Realized, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ForeignCurrencyTransactionGainLossRealized_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Realized gains (losses) on foreign currency forward contracts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_HotelGamingAndLeisureMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Hotel, Gaming and Leisure.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ValuationTechniqueAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Valuation Approach and Technique</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event Type [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ScheduleOfCommitmentsToFundInvestmentsInCurrentPortfolioCompaniesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Commitments To Fund Investments In Current Portfolio Companies</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ScheduleOfCommitmentsToFundInvestmentsInCurrentPortfolioCompaniesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Commitments To Fund Investments In Current Portfolio Companies [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ScheduleOfCommitmentsToFundInvestmentsInCurrentPortfolioCompaniesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of commitments to fund investments in current portfolio companies.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeOperating_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeOperating_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Income, Operating</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeOperating_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Interest Income, Operating, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScheduleOfCondensedBalanceSheetTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Condensed Balance Sheet [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScheduleOfCondensedBalanceSheetTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Statement of Consolidated Balance Sheet Information for Structured Credit Partners</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SubscriptionAgreementsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Subscription Agreements.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SubscriptionAgreementsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subscription Agreements [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SubscriptionAgreementsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subscription Agreements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InterestRateSwapOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Interest rate swap one.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Common stock, price per share</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common shares, par value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TypeOfAdoptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Standards Update [Domain]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EquityInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Equity investments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EquityInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_IncentiveFeesOnNetCapitalGainsLosses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Incentive fees on net capital gains (losses)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_IncentiveFeesOnNetCapitalGainsLosses_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Incentive fees on net capital gains (losses).</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_IncentiveFeesOnNetCapitalGainsLosses_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Incentive fees on net capital gains (losses)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_GreenshootBidcoBVMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Greenshoot Bidco B.V.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_GreenshootBidcoBVMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Greenshoot Bidco B V [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_GreenshootBidcoBVMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Greenshoot Bidco B. V.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Liabilities and Members' Equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfShortTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Repayments of Short-Term Debt, Total</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfShortTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Repayments on debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfShortTermDebt_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Repayments on debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ArrowheadPharmaceuticalsIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Arrowhead pharmaceuticals inc.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ArrowheadPharmaceuticalsIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Arrowhead Pharmaceuticals, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtRelatedCommitmentFeesAndDebtIssuanceCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Related Commitment Fees and Debt Issuance Costs</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncentiveFeeExpenseIncomeBased_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Incentive fees on net investment income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Increase (Decrease) in Other Operating Liabilities, Total</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Debt Securities, Available-for-Sale, Amortized Cost, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale, Amortized Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amortized Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Debt Securities, Available-for-Sale, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyExpenseAfterReductionOfFeeWaiverAndReimbursement_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Expense, after Reduction of Fee Waiver and Reimbursement</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForHedgeInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_DE_lbl" xlink:role="http://www.xbrl.org/2003/role/label">GERMANY</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_DE_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Germany</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InterestRateSwaps_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Interest rate swaps</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InterestRateSwaps_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Rate Swaps</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InterestRateSwaps_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Interest rate swaps.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InterestRateSwaps_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest rate swaps</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_S2024Q2DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">S 2024 Q2 dividends.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_S2024Q2DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">S 2024 Q2 Dividends [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_S2024Q2DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">S2024 Q2 Dividends [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Purchases or originations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CapitalEquipmentSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Capital Equipment Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CapitalEquipmentSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Capital equipment sector.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CapitalEquipmentSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Capital Equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDerivativeInstrumentsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Derivative Instruments [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDerivativeInstrumentsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Amounts Paid and Received on Interest Rate Swap Transactions, Excluding Upfront Fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments in and Advances to Affiliates, at Fair Value, Gross Additions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross Additions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeNotionalAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Notional amount of interest rate swap</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeNotionalAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Notional Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeNotionalAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative, Notional Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_OwnershipDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Ownership [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current Fiscal Year End Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Long-Term Debt Instruments [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Instrument [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_QSRAcquisitionCoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">QSR Acquisition Co. [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_QSRAcquisitionCoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">QSR Acquisition Co.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_QSRAcquisitionCoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">QSR Acquisition Co</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CirrusBidcoLtdMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Cirrus Bidco ltd .</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CirrusBidcoLtdMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cirrus Bidco Ltd [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CirrusBidcoLtdMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cirrus (Bidco) Ltd</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ScorpioBidcoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Scorpio Bidco</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ScorpioBidcoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Scorpio Bidco [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ScorpioBidcoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Scorpio Bidco.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentQuarterlyReport_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Quarterly Report</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetRecurringBasisStillHeldUnrealizedGainLossStatementOfIncomeExtensibleList_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressStateOrProvince_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, State or Province</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MeasurementInputTransactionValueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Measurement input transaction value.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MeasurementInputTransactionValueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input Transaction Value [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MeasurementInputTransactionValueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Transaction value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyInvestmentIncomeLossRatio_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Ratio of net investment income to average net assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyInvestmentIncomeLossRatio_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Investment Income (Loss) Ratio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyInvestmentIncomeLossRatio_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ratio of net investment income to average net assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Amount Available</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility, Remaining Borrowing Capacity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Line of credit facility, remaining borrowing capacity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_EquityMethodInvesteeNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Name [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedBalanceShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Owned, Balance, Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedBalanceShares_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment, shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_NumberOfBorrowers_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of borrowers in SCP</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_NumberOfBorrowers_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number of Borrowers</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_NumberOfBorrowers_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of borrowers.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SouthMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">South.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SouthMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">South [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SouthMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">United States - South</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_StatementGeographicalAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Geographical [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_StatementGeographicalAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Geographical</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueRecurringBasisUnobservableInputReconciliationAssetGainLossStatementOfIncomeExtensibleList_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SeverinAcquisitionLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Severin Acquisition, LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SeverinAcquisitionLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Severin Acquisition, LLC</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SeverinAcquisitionLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Severin Acquisition, LLC.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Accrued Interest Receivable, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Interest receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MeritSoftwareFinanceHoldingsLlcMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Merit Software Finance Holdings LLC</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MeritSoftwareFinanceHoldingsLlcMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Merit Software Finance Holdings, LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MeritSoftwareFinanceHoldingsLlcMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Merit Software Finance Holdings, LLC.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfNonQualifyingAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of non-qualifying assets.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfNonQualifyingAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Non Qualifying Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfNonQualifyingAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of non-qualifying assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherGeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other General and Administrative Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherGeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other general and administrative</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfessionalFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Professional fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfessionalFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Professional Fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AerospaceAndDefenseSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Aerospace and Defense Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AerospaceAndDefenseSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Aerospace and defense sector.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AerospaceAndDefenseSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Aerospace &amp; Defense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfOrganizationAndOfferingExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of organization and offering expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfOrganizationAndOfferingExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage of Organization and Offering Expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfOrganizationAndOfferingExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of organization and offering expenses.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_RetailAndConsumerProductsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Retail and Consumer Products.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_RetailAndConsumerProductsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retail And Consumer Products [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_RetailAndConsumerProductsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Retail and Consumer Products</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInIncentiveFeePayableIncomeBased_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Incentive Fee Payable, Income-Based</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInIncentiveFeePayableIncomeBased_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Incentive fees on net investment income payable to affiliate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInIncentiveFeePayableIncomeBased_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Incentive fees on net investment income payable to affiliate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentNonconsolidatedInvesteeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Method Investment, Nonconsolidated Investee [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MediaDiversifiedAndProductionSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Media Diversified and Production Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MediaDiversifiedAndProductionSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Media diversified and production sector.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpenseOperating_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpenseOperating_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Interest Expense, Operating, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpenseOperating_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Expense, Operating</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred financing costs and original issue discounts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurement Inputs and Valuation Techniques [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EnergyElectricitySectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Energy Electricity Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EnergyElectricitySectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Energy electricity sector.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EnergyElectricitySectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Energy: Electricity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentInterestRatePaidInKind_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Interest Rate, Paid in Kind</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentInterestRatePaidInKind_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest Rate, PIK</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpenseDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Expense, Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpenseDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpenseDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Interest Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_BabylonFincoLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Babylon finco limited</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_BabylonFincoLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Babylon Finco Limited [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_BabylonFincoLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Babylon Finco Limited</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilityNotionalAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Notional amount to be purchased</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilityNotionalAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Liability, Notional Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_JointVentureInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Joint Venture Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_JointVentureInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Joint venture investments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_JointVentureInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Joint venture investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transaction [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Related Party Transaction</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Derivative Liability, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilities_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Derivative liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_IncentiveFeesAccruedRelatedToExpenseReversalCapitalGainsFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Incentive fees accrued related to expense of capital gains (losses) fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_IncentiveFeesAccruedRelatedToExpenseReversalCapitalGainsFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Incentive Fees Accrued Related To Expense (Reversal) Capital Gains Fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_IncentiveFeesAccruedRelatedToExpenseReversalCapitalGainsFees_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Incentive fees accrued related to expense (reversal) capital gains fees.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_WholesaleSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Wholesale Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_WholesaleSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Wholesale sector.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_WholesaleSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Wholesale</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIssuerNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Issuer Name [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestRateDerivativesAtFairValueNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Interest Rate Derivatives, at Fair Value, Net, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestRateDerivativesAtFairValueNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Rate Derivatives, at Fair Value, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestRateDerivativesAtFairValueNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Market Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CarlyleCreditSolutionsIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Carlyle Credit Solutions, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CarlyleCreditSolutionsIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Carlyle Credit Solutions, Inc. [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CarlyleCreditSolutionsIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Carlyle Credit Solutions, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingStandardsUpdate202404Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Standards Update 2024-04 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingStandardsUpdate202404Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">ASU 2024-04</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AutomotiveSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Automotive</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AutomotiveSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Automotive Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SellingGeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Expenses incurred</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SellingGeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Selling, General and Administrative Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SellingGeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Selling, General and Administrative Expense, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentMaturityDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Maturity Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentMaturityDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt instrument, maturity date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Minimum [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Minimum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InternetServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Internet Services</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InternetServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Internet Services.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InternetServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Internet Services [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Instrument [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial Instrument</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AlternativeBaseRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Alternative base rate.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AlternativeBaseRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Alternative Base Rate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AlternativeBaseRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Alternative Base Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments in and Advances to Affiliates, at Fair Value, Gross Reductions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross Reductions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyIncentiveFeeToAverageNetAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Incentive Fee to Average Net Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyIncentiveFeeToAverageNetAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Portfolio turnover</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Level 3</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 3 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyGainLossOnInvestmentPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Gain (Loss) on Investment, Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyGainLossOnInvestmentPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net realized and unrealized gain (loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ContainersPackagingAndGlassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Containers, Packaging And Glass [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ContainersPackagingAndGlassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Containers, packaging and glass.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ContainersPackagingAndGlassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Containers, Packaging &amp; Glass</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Measurements of Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossOnInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unrealized Gain (Loss) on Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossOnInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net Change In Unrealized Gain/(Loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossOnInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Non-controlled, non-affiliated investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossOnInvestments_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Net change in unrealized (gains) losses on investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2025Q4OneDividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">O 2025 Q4 One Dividends [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2025Q4OneDividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">O 2025 Q4 One Dividends.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2025Q4OneDividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">O 2025 Q4 Dividends [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transactions [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common shares outstanding, end of period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Ending balance, Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shares, Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Beginning balance, Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_FullsteamOperationsLlcMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fullsteam Operations LLC.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_FullsteamOperationsLlcMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fullsteam Operations LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_FullsteamOperationsLlcMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fullsteam Operations LLC</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCashAndCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash and cash equivalents was restricted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCashAndCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Restricted Cash and Cash Equivalent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCashAndCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Restricted Cash and Cash Equivalent, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commitments and contingencies (Note 8)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EurodollarMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Eurocurrency Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EurodollarMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Eurodollar [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfPreIncentiveFeeNetInvestmentIncomePayableQuarterlySubsequentToExchangeListing_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of pre-incentive fee net investment income payable quarterly subsequent to exchange listing</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfPreIncentiveFeeNetInvestmentIncomePayableQuarterlySubsequentToExchangeListing_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Pre Incentive Fee Net Investment Income Payable Quarterly Subsequent to Exchange Listing</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfPreIncentiveFeeNetInvestmentIncomePayableQuarterlySubsequentToExchangeListing_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of pre-incentive fee net investment income payable quarterly subsequent to exchange listing.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralAndAdministrativeExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">General and Administrative Expense [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralAndAdministrativeExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other General and Administrative Expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Debt Instrument, basis spread on variable rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Basis Spread on Variable Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reference Rate and Spread percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends Payable [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividends Payable [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_NumberOfInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number of Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_NumberOfInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of investments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_NumberOfInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of investment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OpenForwardForeignCurrencyContractIdentifierAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Open Forward Foreign Currency Contract, Identifier [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_WithoutManagementFeeWaiverMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Without Management Fee Waiver [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_WithoutManagementFeeWaiverMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Without management fee waiver.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_TotalCommitments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total commitments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_TotalCommitments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Total Commitments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_TotalCommitments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Total commitments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_AU_lbl" xlink:role="http://www.xbrl.org/2003/role/label">AUSTRALIA</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_AU_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Australia</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income (Loss), Including Portion Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Increase (Decrease) in net assets resulting from operations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyIncentiveAllocationToAverageNetAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ratio of net expenses to average net assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyIncentiveAllocationToAverageNetAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Incentive Allocation to Average Net Assets, Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ManufacturingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Manufacturing.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ManufacturingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Manufacturing [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ManufacturingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Manufacturing</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfExcessPreIncentiveFeeNetInvestmentIncomeForImmediatePrecedingCalendarQuarter_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of excess pre-incentive fee net investment income for immediate preceding calendar quarter.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfExcessPreIncentiveFeeNetInvestmentIncomeForImmediatePrecedingCalendarQuarter_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Excess Pre Incentive Fee Net Investment Income For Immediate Preceding Calendar Quarter</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfExcessPreIncentiveFeeNetInvestmentIncomeForImmediatePrecedingCalendarQuarter_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of excess pre-incentive fee net investment income for immediate preceding calendar quarter</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AdviserMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Adviser.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AdviserMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adviser [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AdviserMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Adviser</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PaidInKindInterestIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Paid-In-Kind Interest Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PaidInKindInterestIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Paid-in-kind interest income.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PaidInKindInterestIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Paid-in-kind interest income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostApproachValuationTechniqueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Valuation, Cost Approach [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostApproachValuationTechniqueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingenciesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loss Contingencies [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingenciesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loss Contingencies [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedInvestmentsAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Restricted Investments, at Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedInvestmentsAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value of securities as percentage of net assets amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Denominator for basic weighted average shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Weighted Average Number of Shares Outstanding, Basic, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Shares Outstanding, Basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average common shares outstanding-basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ArtisanBidcoIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Artisan Bidco, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ArtisanBidcoIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Artisan Bidco, Inc [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ArtisanBidcoIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Artisan Bidco, Inc</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingExpenseInformationUsedByCodmDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting, Expense Information Used by CODM, Description</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoninterestExpenseOfferingCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Offering Cost, Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoninterestExpenseOfferingCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Offering expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoninterestExpenseOfferingCost_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Organization and offering expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AledadeIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Aledade, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AledadeIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Aledade Inc [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AledadeIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Aledade, inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetPledgedAsCollateralMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Pledged as Collateral [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetPledgedAsCollateralMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Asset Pledged as Collateral</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InvestmentsFairValueDisclosureNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InvestmentsFairValueDisclosureNet_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Investments fair value disclosure net.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InvestmentsFairValueDisclosureNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments Fair Value Disclosure Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InvestmentsFairValueDisclosureNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Events [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subsequent Events</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Carrying Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Carrying value of debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Outstanding debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt (net of deferred financing costs of $34,526 and $37,041, respectively)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transactions Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Agreements and Related Party Transactions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Cash_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Cash_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromUnsecuredNotesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Unsecured Notes Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromUnsecuredNotesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from issuance of debt, net of underwriting discount and offering costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableRateDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Variable Rate [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableRateDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Variable Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Attributable to Parent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Ending balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Beginning balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stockholders' equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Net Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Shareholders' equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_RaptorUsBuyerIiCorpMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Raptor US Buyer II Corp</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_RaptorUsBuyerIiCorpMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Raptor us buyer II corp.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_RaptorUsBuyerIiCorpMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Raptor US Buyer II Corp [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ApellisPharmaceuticalsIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Apellis Pharmaceuticals, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ApellisPharmaceuticalsIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Apellis Pharmaceuticals, Inc [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ApellisPharmaceuticalsIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Apellis Pharmaceuticals, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Basis of Presentation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Basis of Accounting, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_UtilitiesElectricSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Utilities Electric Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_UtilitiesElectricSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Utilities electric sector.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_UtilitiesElectricSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Utilities: Electric</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfStockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Stockholders' Equity [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_BigWombatHoldingsIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Big Wombat Holdings, Inc [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_BigWombatHoldingsIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Big wombat holdings, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_BigWombatHoldingsIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Big Wombat Holdings, Inc</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ValuationTechniqueDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Valuation Approach and Technique [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ValuationTechniqueDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Valuation Approach and Technique</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UseOfEstimates_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Use of Estimates, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UseOfEstimates_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Use of Estimates</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2025Q1DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">O 2025 Q1 Dividends [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2025Q1DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">O 2025 Q1 dividends.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2025Q1DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">O2025 Q1 Dividends [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CurrentMarketPricePerSharePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current price per share, Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CurrentMarketPricePerSharePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Current Market Price Per Share Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CurrentMarketPricePerSharePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Current market price per share percentage.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CurrentMarketPricePerSharePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Current price per share, Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_OilGasAndConsumableFuelsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Oil, Gas and Consumable Fuels.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_OilGasAndConsumableFuelsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Oil Gas And Consumable Fuels [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_OilGasAndConsumableFuelsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Oil, Gas and Consumable Fuels</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SummaryOfIndustryCompositionOfInvestmentsAtFairValueTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Industry Composition of Investments at Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SummaryOfIndustryCompositionOfInvestmentsAtFairValueTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Summary Of Industry Composition Of Investments At Fair Value [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SummaryOfIndustryCompositionOfInvestmentsAtFairValueTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Summary of industry composition of investments at fair value.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine2_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Address Line Two</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScheduleOfCondensedIncomeStatementTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Condensed Income Statement [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScheduleOfCondensedIncomeStatementTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Statement of Consolidated Operations for Structured Credit Partners</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Disclosures [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value of Financial Instruments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableDateDeclaredDayMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Date Declared</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableDateDeclaredDayMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends Payable, Date Declared</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableDateDeclaredDayMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividends date declared</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PdiTaHoldingsIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">PDI TA Holdings, Inc</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PdiTaHoldingsIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">PDI TA Holdings, Inc [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PdiTaHoldingsIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">PDI TA Holdings, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SignificantAccountingPoliciesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Significant Accounting Policies [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SignificantAccountingPoliciesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Significant accounting policies.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_NL_lbl" xlink:role="http://www.xbrl.org/2003/role/label">NETHERLANDS</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_NL_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Netherlands</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2025Q4DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">O 2025 Q4 Dividends [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2025Q4DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">O 2025 Q4 Dividends.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2025Q4DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">O2025 Q4 Dividends [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Owned, Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Fair Value, Ending balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Fair Value, Beginning balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Investments at fair value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_US_lbl" xlink:role="http://www.xbrl.org/2003/role/label">UNITED STATES</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_US_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">United States</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EquitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EquitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EquitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Equities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Name [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Instrument, Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncashInvestingAndFinancingItemsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Non-Cash Financing Activities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncashInvestingAndFinancingItemsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noncash Investing and Financing Items [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputDiscountRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input, Discount Rate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputDiscountRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Discount Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MezzanineDebtInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Mezzanine debt investments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MezzanineDebtInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Mezzanine Debt Investments [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MezzanineDebtInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Mezzanine Debt Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesAndOtherLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesAndOtherLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued Liabilities and Other Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesAndOtherLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Accrued expenses and other liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prepaid Expense and Other Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prepaid expenses and other assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Prepaid expenses and other assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instruments and Hedging Activities Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_WeightedAverageYieldRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Yield Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_WeightedAverageYieldRate_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Weighted average yield rate.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_WeightedAverageYieldRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average yield on our investment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingCodmIndividualTitleAndPositionOrGroupOrCommitteeNameExtensibleEnumeration_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_VarinemGermanBidcoGmbhMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Varinem german bidco gmbH .</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_VarinemGermanBidcoGmbhMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Varinem German Bidco GmbH [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_VarinemGermanBidcoGmbhMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Varinem German Bidco GmbH</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_HighTechIndustriesSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">High Tech Industries Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_HighTechIndustriesSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">High tech industries sector.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_HighTechIndustriesSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">High Tech Industries</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_TaxExpensePertainingToNetRealizedGainsRelatedToInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Tax Expense Pertaining to Net Realized Gains Related to Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_TaxExpensePertainingToNetRealizedGainsRelatedToInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Tax expense pertaining to net realized gains related to investments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_TaxExpensePertainingToNetRealizedGainsRelatedToInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tax expense pertaining to net realized gains related to investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ArcwoodEnvironmentalIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Arcwood Environmental Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ArcwoodEnvironmentalIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Arcwood Environmental Inc [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ArcwoodEnvironmentalIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Arcwood Environmental Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Expense, Operating and Nonoperating</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Interest Expense, Operating and Nonoperating, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SterlingOvernightInterbankAverageRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">SONIA</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SterlingOvernightInterbankAverageRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sterling Overnight Interbank Average Rate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SterlingOvernightInterbankAverageRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Sterling Overnight Interbank Average Rate.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CreditFacilityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Credit Facility [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CreditFacilityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Credit Facility</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentOwnershipPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Method Investment, Ownership Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentOwnershipPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of investments ownership</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfInvestmentsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Investments [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_HMPOmnimediaLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">HMP Omnimedia LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_HMPOmnimediaLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Hmp omnimedia llc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_HMPOmnimediaLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">HMP Omnimedia, LLC</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_DelayedDrawRevolverMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Delayed Draw &amp; Revolver</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_DelayedDrawRevolverMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Delayed Draw &amp; Revolver [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_DelayedDrawRevolverMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Delayed Draw &amp; Revolver.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_LegPurchaserIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Leg Purchaser Inc. [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_LegPurchaserIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Leg purchaser inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_LegPurchaserIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Leg Purchaser Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Related Party</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related and Nonrelated Parties [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityAverageOutstandingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility, Average Outstanding Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityAverageOutstandingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Average debt outstanding (in millions)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_JointVentureInvestmentsCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Joint venture investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_JointVentureInvestmentsCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Joint Venture Investments Current And Noncurrent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_JointVentureInvestmentsCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Joint venture investments current and noncurrent.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressCityOrTown_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, City or Town</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MinimumPercentageOfVotingSecuritiesInInvestmentPortfolio_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Minimum percentage of voting securities in investment portfolio.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MinimumPercentageOfVotingSecuritiesInInvestmentPortfolio_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Minimum Percentage Of Voting Securities In Investment Portfolio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MinimumPercentageOfVotingSecuritiesInInvestmentPortfolio_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Minimum percentage of voting securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_UtilitiesOilAndGasSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Utilities: Oil &amp; Gas</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_UtilitiesOilAndGasSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Utilities Oil and Gas Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_UtilitiesOilAndGasSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Utilities oil and gas sector.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_IT_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Italy</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_IT_lbl" xlink:role="http://www.xbrl.org/2003/role/label">ITALY</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIssuerAffiliationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Issuer Affiliation [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SediverSPAMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sediver S p A [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SediverSPAMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Sediver S.p.A.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SediverSPAMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sediver S.p.A.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtWeightedAverageInterestRateOverTime_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average interest rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtWeightedAverageInterestRateOverTime_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Weighted Average Interest Rate, over Time</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ConsumerGoodsNon-DurableSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Consumer Goods Non-Durable Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ConsumerGoodsNon-DurableSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Consumer goods non-durable sector.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ConsumerGoodsNon-DurableSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Consumer goods: Non-durable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_NetExpenseForFederalExciseTaxAndOtherTaxes_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net expense for U.S. federal excise tax and other taxes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_NetExpenseForFederalExciseTaxAndOtherTaxes_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Expense For Federal Excise Tax And Other Taxes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_NetExpenseForFederalExciseTaxAndOtherTaxes_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Net expense for federal excise tax and other taxes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_HeritageEnvironmentalServicesIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Heritage environmental services, Inc</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_HeritageEnvironmentalServicesIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Heritage Environmental Services, Inc [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_HeritageEnvironmentalServicesIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Heritage Environmental Services, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfReportableSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of reportable segment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfReportableSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number of Reportable Segments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_SecurityExchangeName_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Security Exchange Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CreditFacilityDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Credit Facility [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CreditFacilityDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Credit Facility</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossInvestmentDerivativeAndForeignCurrencyTransactionOperatingAfterTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total net change in unrealized gains (losses)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossInvestmentDerivativeAndForeignCurrencyTransactionOperatingAfterTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unrealized Gain (Loss), Investment, Derivative, and Foreign Currency Transaction, Operating, after Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossInvestmentDerivativeAndForeignCurrencyTransactionOperatingAfterTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net change in unrealized gains (losses) on investments and foreign currency translation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossInvestmentDerivativeAndForeignCurrencyTransactionOperatingAfterTax_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net change in unrealized gains (losses) on investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_KryptonaBidCoUSLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Kryptona BidCo US, LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_KryptonaBidCoUSLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Kryptona BidCo US, LLC.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_KryptonaBidCoUSLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Kryptona BidCo US, LLC</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentCarryingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Outstanding Principal</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentCarryingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Principal amount of debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentCarryingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Gross</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtWeightedAverageInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt, Weighted Average Interest Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtWeightedAverageInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average yield on senior secured loans</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FoodAndBeverageSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Food and Beverage Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FoodAndBeverageSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Beverage &amp; Food</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ElysiumBidCoLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Elysium BidCo Limited</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ElysiumBidCoLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Elysium BidCo Limited [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ElysiumBidCoLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Elysium BidCo Limited.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueNetAssetLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Fair Value, Net Asset (Liability), Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueNetAssetLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Net Asset (Liability)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueNetAssetLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net assets, end of period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_LineOfCreditFacilityStatedMaturityDate_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Line of credit facility, stated maturity date.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_LineOfCreditFacilityStatedMaturityDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line Of Credit Facility Stated Maturity Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_LineOfCreditFacilityStatedMaturityDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Line of credit facility, stated maturity date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input Type [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Measurement Input Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentAcquisitionDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Initial Acquisition Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentAcquisitionDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Acquisition Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedAtCost_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Investments at amortized cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedAtCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Owned, Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedAtCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amortized Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ConstructionAndBuildingSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Construction and Building Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ConstructionAndBuildingSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Construction and building sector.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ConstructionAndBuildingSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Construction &amp; Building</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_BM_lbl" xlink:role="http://www.xbrl.org/2003/role/label">BERMUDA</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_BM_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Bermuda</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Paid, Excluding Capitalized Interest, Operating Activity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest paid during the period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AgreementTerminationPeriodWithoutPenalty_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Agreement termination period, without penalty.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AgreementTerminationPeriodWithoutPenalty_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Agreement Termination Period Without Penalty</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AgreementTerminationPeriodWithoutPenalty_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Agreement termination period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statistical Measurement [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Statistical Measurement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TradingSecuritiesDebtAmortizedCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Valued at cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TradingSecuritiesDebtAmortizedCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Trading, Amortized Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MindBodyIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">MindBody, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MindBodyIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">MindBody, Inc. [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MindBodyIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">MindBody, inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Period End Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_DK_lbl" xlink:role="http://www.xbrl.org/2003/role/label">DENMARK</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_DK_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Denmark</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_WestMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">West.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_WestMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">West [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_WestMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">United States - West</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Hierarchy and NAV [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Hierarchy and NAV</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_RapidDataGmbhUnternehmensberatungMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Rapid Data GmbH Unternehmensberatung</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_RapidDataGmbhUnternehmensberatungMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Rapid Data GmbH Unternehmensberatung [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_RapidDataGmbhUnternehmensberatungMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Rapid Data GmbH Unternehmensberatung.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityCommitmentFeePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of commitment fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityCommitmentFeePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility, Commitment Fee Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealizedGainLossInvestmentDerivativeAndForeignCurrencyTransactionOperatingAfterTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total net realized gains (losses)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealizedGainLossInvestmentDerivativeAndForeignCurrencyTransactionOperatingAfterTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Realized Gain (Loss), Investment, Derivative, and Foreign Currency Transaction, Operating, after Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealizedGainLossInvestmentDerivativeAndForeignCurrencyTransactionOperatingAfterTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net realized gains (losses) on investments and foreign currency transactions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealizedGainLossInvestmentDerivativeAndForeignCurrencyTransactionOperatingAfterTax_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net realized gains (losses) on investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIssuerAffiliationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Issuer Affiliation [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentDescriptionOfVariableRateBasis_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Debt instrument, description of variable rate basis</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentDescriptionOfVariableRateBasis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Description of Variable Rate Basis</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentDescriptionOfVariableRateBasis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reference Rate and Spread</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FeeIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fee Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FeeIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Arranger Fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfFinancialPositionAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Financial Position [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_IngenovisHealthFinanceLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Ingenovis Health Finance, LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_IngenovisHealthFinanceLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Ingenovis Health Finance, LLC.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_IngenovisHealthFinanceLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ingenovis Health Finance, LLC</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfNetProceedsOfSaleOfEquityInterests_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of net proceeds of sale of equity interests.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfNetProceedsOfSaleOfEquityInterests_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Net Proceeds Of Sale Of Equity Interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfNetProceedsOfSaleOfEquityInterests_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of net proceeds of sale of equity interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfCapitalGainIncentiveFeeSubsequentToExchangeListing_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of capital gain incentive fee subsequent to exchange listing</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfCapitalGainIncentiveFeeSubsequentToExchangeListing_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage of Capital Gain Incentive Fee Subsequent to Exchange Listing</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfCapitalGainIncentiveFeeSubsequentToExchangeListing_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of capital gain incentive fee subsequent to exchange listing.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_BctoBluebillBuyerIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">BCTO Bluebill Buyer, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_BctoBluebillBuyerIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">BCTO Bluebill Buyer, Inc. [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_BctoBluebillBuyerIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">BCTO Bluebill Buyer, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AlaskaBidcoOyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Alaska Bidco Oy</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AlaskaBidcoOyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Alaska bidco oy member.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AlaskaBidcoOyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Alaska Bidco Oy [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PrincipalAmountOutstandingAndAccruedInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Principal amount outstanding and accrued interest.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PrincipalAmountOutstandingAndAccruedInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Principal Amount Outstanding and Accrued Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PrincipalAmountOutstandingAndAccruedInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Principal amount outstanding and accrued interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfFloatingRateLoans_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage of Floating Rate Loans</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfFloatingRateLoans_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of floating rate loans</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfFloatingRateLoans_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Floating rate loans</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CapitalContributedToJointVenture_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Capital Contributed to Joint Venture</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CapitalContributedToJointVenture_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Capital contributed to joint venture.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CapitalContributedToJointVenture_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Capital contributed to joint venture</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ForeignCurrencyTransactionGainLossRealized1_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Foreign currency transaction gain loss realized 1.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ForeignCurrencyTransactionGainLossRealized1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Foreign Currency Transaction Gain Loss Realized 1</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ForeignCurrencyTransactionGainLossRealized1_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Net realized (gains) losses on foreign currency transactions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InvestmentAdvisoryAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Investment advisory agreement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InvestmentAdvisoryAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Advisory Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InvestmentAdvisoryAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment Advisory Agreement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NondesignatedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Not Designated As Hedging Instrument</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NondesignatedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Not Designated as Hedging Instrument [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Instruments [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial Instruments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssetTypeExtensibleList_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Asset, Type [Extensible Enumeration]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeOperatingTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Income, Operating, Tax Expense (Benefit)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeOperatingTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income taxes, including excise taxes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CapitalCommitmentsRemainingUndrawn_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Capital commitments remaining undrawn</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CapitalCommitmentsRemainingUndrawn_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Capital Commitments Remaining Undrawn</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CapitalCommitmentsRemainingUndrawn_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Capital commitments remaining undrawn.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Dividends_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Dividends, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Dividends_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Dividends_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Dividends declared from net investment income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Dividends_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividends</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCash_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Restricted Cash, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCash_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Restricted Cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCash_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Restricted cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_HealthcareAndPharmaceuticalsSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Healthcare and Pharmaceuticals Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_HealthcareAndPharmaceuticalsSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Healthcare and pharmaceuticals sector.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_HealthcareAndPharmaceuticalsSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Healthcare &amp; Pharmaceuticals</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ProceedsFromSettlementsOfInterestRateSwapsExcludingUpfrontFees_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Proceeds from settlements of interest rate swaps excluding upfront fees.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ProceedsFromSettlementsOfInterestRateSwapsExcludingUpfrontFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds From Settlements Of Interest Rate Swaps Excluding Upfront Fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ProceedsFromSettlementsOfInterestRateSwapsExcludingUpfrontFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from settlements of interest rate swaps excluding upfront fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ForeignExchangeForwardMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Foreign Exchange Forward [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ForeignExchangeForwardMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Foreign Currency Forward Contract</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableRateAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Variable Rate [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableRateAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Variable Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ObligorGroupMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Obligor Group [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AdjustedDailySimpleSecuredOvernightFinancingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Adjusted Daily SOFR</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AdjustedDailySimpleSecuredOvernightFinancingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjusted Daily Simple Secured Overnight Financing [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AdjustedDailySimpleSecuredOvernightFinancingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Adjusted daily simple secured overnight financing.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Shares Outstanding, Diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Denominator for diluted weighted average shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average common shares outstanding-diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Weighted average shares of Common Shares outstanding-diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_NO_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Norway</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_NO_lbl" xlink:role="http://www.xbrl.org/2003/role/label">NORWAY</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ReimbursementOfTransactionRelatedExpensesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reimbursement of Transaction-Related Expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ReimbursementOfTransactionRelatedExpensesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reimbursement Of Transaction Related Expenses [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ReimbursementOfTransactionRelatedExpensesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Reimbursement of transaction-related expenses.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFileNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity File Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncentiveFeeExpenseCapitalGainBased_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Incentive Fee Expense, Capital-Gain-Based</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncentiveFeeExpenseCapitalGainBased_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Incentive Fees on capital gains</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_KasewareIntermediateHoldingCompanyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Kaseware Intermediate Holding Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_KasewareIntermediateHoldingCompanyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Kaseware Intermediate Holding Company [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_KasewareIntermediateHoldingCompanyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Kaseware Intermediate Holding Company.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfInvestmentsAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment fair value percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfInvestmentsAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of investments at fair value.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfInvestmentsAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Investments At Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_RainFocusLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">RainFocus, LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_RainFocusLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">RainFocus, LLC.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_RainFocusLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">RainFocus, LLC</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_DividendsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Dividends.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_DividendsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_DividendsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividends</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TaxBasisOfInvestmentsGrossUnrealizedDepreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Tax Basis, Unrealized Loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TaxBasisOfInvestmentsGrossUnrealizedDepreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Estimated gross unrealized loss on tax cost investment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ChemicalsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Chemicals</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ChemicalsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Chemicals [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ChemicalsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Chemicals.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_LU_lbl" xlink:role="http://www.xbrl.org/2003/role/label">LUXEMBOURG</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_LU_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Luxembourg</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Measurement Input Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfCumulativeRealizedCapitalGainsLessAggregateCapitalGainIncentiveFee_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of cumulative realized capital gains less aggregate capital gain incentive fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfCumulativeRealizedCapitalGainsLessAggregateCapitalGainIncentiveFee_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage of Cumulative Realized Capital Gains Less Aggregate Capital Gain Incentive Fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfCumulativeRealizedCapitalGainsLessAggregateCapitalGainIncentiveFee_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of cumulative realized capital gains less aggregate capital gain incentive fee.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfCarryingValuesAndEstimatedFairValuesOfDebtInstrumentsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfCarryingValuesAndEstimatedFairValuesOfDebtInstrumentsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value of Company's 2029 and 2030 Notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InterestAndDividendIncomeRecognitionPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest and Dividend Income Recognition</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InterestAndDividendIncomeRecognitionPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest and Dividend Income Recognition [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InterestAndDividendIncomeRecognitionPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Interest and dividend income recognition.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentTypeCategorizationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentTypeCategorizationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeGainLossOnDerivativeNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Derivative, Gain (Loss) on Derivative, Net, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeGainLossOnDerivativeNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative, Gain (Loss) on Derivative, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeGainLossOnDerivativeNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Change in Unrealized Gains / (Losses)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ForeignCurrencyTransactionGainLossUnrealized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unrealized Gain (Loss), Foreign Currency Transaction, before Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ForeignCurrencyTransactionGainLossUnrealized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Translation of other assets and liabilities in foreign currencies</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ForeignCurrencyTransactionGainLossUnrealized_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Net change in unrealized (gains) losses on foreign currency transactions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ForeignCurrencyTransactionGainLossUnrealized_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">Unrealized gains (losses) on foreign currency forward contracts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AlternativeInvestmentMeasurementInput_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment measurement input</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AlternativeInvestmentMeasurementInput_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Alternative Investment, Measurement Input</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SummaryOfStructuredCreditPartnersPortfolioTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Summary of Structured Credit Partners Portfolio [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SummaryOfStructuredCreditPartnersPortfolioTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Summary of structured credit partners portfolio.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SummaryOfStructuredCreditPartnersPortfolioTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Structured Credit Partners Portfolio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TaxBasisOfInvestmentsCostForIncomeTaxPurposes_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Tax Basis, Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TaxBasisOfInvestmentsCostForIncomeTaxPurposes_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tax cost of investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsDeclaredTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Dividends Declared</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsDeclaredTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends Declared [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_IncentiveFeesOnCapitalGains_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Incentive Fees On Capital Gains</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_IncentiveFeesOnCapitalGains_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Incentive fees on capital gains.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_IncentiveFeesOnCapitalGains_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Incentive fees on capital gains</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AvalaraIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Avalara, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AvalaraIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Avalara, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AvalaraIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Avalara, Inc [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Real Estate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeFairValueHedgeIncludedInEffectivenessGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative, Fair Value Hedge, Included in Effectiveness, Gain (Loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeFairValueHedgeIncludedInEffectivenessGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Adjustment in carrying value result from hedge accounting</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeFairValueHedgeIncludedInEffectivenessGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gain (loss) on fair value effective hedge</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityInterestRateDuringPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt instrument interest rate subject to credit spread adjustment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityInterestRateDuringPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility, Interest Rate During Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityInterestRateDuringPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Interest amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfManagementFeeCalculatedOnGrossAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of management fee calculated on gross assets.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfManagementFeeCalculatedOnGrossAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Management Fee Calculated On Gross Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfManagementFeeCalculatedOnGrossAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of management fee on gross assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_KangarooBidcoASMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Kangaroo Bidco A S.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_KangarooBidcoASMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Kangaroo Bidco A S [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_KangarooBidcoASMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Kangaroo Bidco AS</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PledgedStatusDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Pledged Status [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PledgedStatusDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Pledged Status</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_OmnigoSoftwareLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Omnigo Software, LLC.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_OmnigoSoftwareLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Omnigo Software L L C [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_OmnigoSoftwareLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Omnigo Software, LLC</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfInvestmentsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Investments [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">New Accounting Pronouncements, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Recent Accounting Standards and Regulatory Updates</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MinimumPercentageOfInvestmentCompanyTaxableIncomeDistributeToStockholdersInEachTaxableYearToQualifyAsRIC_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Minimum percentage of investment company taxable income distribute to stockholders in each taxable year to qualify as RIC.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MinimumPercentageOfInvestmentCompanyTaxableIncomeDistributeToStockholdersInEachTaxableYearToQualifyAsRIC_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Minimum percentage of investment company taxable income distribute to stockholders in each taxable year to qualify as RIC</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MinimumPercentageOfInvestmentCompanyTaxableIncomeDistributeToStockholdersInEachTaxableYearToQualifyAsRIC_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Minimum Percentage Of Investment Company Taxable Income Distribute To Stockholders In Each Taxable Year To Qualify As R I C</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InvestmentsInAndAdvancesToAffiliatesAtFairValueNetChangeInUnrealizedGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments in and Advances to Affiliates, at Fair Value, Net Change in Unrealized Gain (Loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InvestmentsInAndAdvancesToAffiliatesAtFairValueNetChangeInUnrealizedGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Investments in and advances to affiliates at fair value net change in unrealized gain (loss).</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InvestmentsInAndAdvancesToAffiliatesAtFairValueNetChangeInUnrealizedGainLoss_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">Net Change in Unrealized Gain/(Loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForPurchaseOfInvestmentOperatingActivity_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Purchases and originations of investments, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForPurchaseOfInvestmentOperatingActivity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payment for Purchase, Investment, Operating Activity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_OwnershipAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Ownership [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosureAssetAndLiabilityNotMeasuredAtFairValueLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosureAssetAndLiabilityNotMeasuredAtFairValueLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Disclosure Asset And Liability Not Measured At Fair Value [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_BeamTherapeuticsIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Beam Therapeutics, Inc. [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_BeamTherapeuticsIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Beam therapeutics, inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_BeamTherapeuticsIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Beam Therapeutics, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_FairValueOfAnEffectiveHedge_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value of an effective hedge</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_FairValueOfAnEffectiveHedge_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fair value of an effective hedge.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_FairValueOfAnEffectiveHedge_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Of An Effective Hedge</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Common shares outstanding, end of period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Common Stock, Shares, Outstanding, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Common Stock, Shares, Outstanding, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares, Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common shares, outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_NondeductibleFederalExciseTaxPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Nondeductible federal excise tax percentage.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_NondeductibleFederalExciseTaxPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Nondeductible Federal Excise Tax Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_NondeductibleFederalExciseTaxPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Nondeductible U.S. federal excise tax percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_TransportationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Transportation.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_TransportationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Transportation [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_TransportationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Transportation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividends</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentTransitionReport_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Transition Report</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersWithinLevel3_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Transfers within Level 3</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersWithinLevel3_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Within Level 3</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersWithinLevel3_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fair value measurement with unobservable inputs reconciliation recurring basis asset transfers within level 3.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SportAllianceGmbhMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sport Alliance GmbH</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SportAllianceGmbhMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sport Alliance GMBH [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SportAllianceGmbhMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Sport Alliance GMBH.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InvestmentDueDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment, due date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InvestmentDueDate_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Investment due date.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InvestmentDueDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Due Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InvestmentDueDate_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Investment due date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SkylarkUkDebtcoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">SkyLark UK DebtCo</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SkylarkUkDebtcoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">SkyLark UK DebtCo [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SkylarkUkDebtcoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">SkyLark UK DebtCo.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfInvestmentsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Investments [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossOnDerivatives_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unrealized gains (losses) on derivatives</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossOnDerivatives_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Net change in unrealized losses on interest rate swaps</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossOnDerivatives_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Foreign currency forward contracts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossOnDerivatives_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unrealized gains (losses) on foreign currency forward contracts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossOnDerivatives_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">Net change in unrealized (gains) losses on foreign currency forward contracts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfCashFlowsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Cash Flows [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_UnfundedCommitments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unfunded commitments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_UnfundedCommitments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unfunded Commitments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_UnfundedCommitments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Unfunded commitments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_HK_lbl" xlink:role="http://www.xbrl.org/2003/role/label">HONG KONG</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_HK_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Hong Kong</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issuance of common shares, Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, New Issues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyManagementFeeWaived_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Management Fee Waived</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyManagementFeeWaived_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Investment Company, Management Fee Waived, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyManagementFeeWaived_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Management fees waived (Note 3)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyManagementFeeWaived_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Management fees waived (Note 3)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_FlightIntermediateHoldCoIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Flight Intermediate HoldCo, Inc [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_FlightIntermediateHoldCoIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Flight Intermediate HoldCo, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_FlightIntermediateHoldCoIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Flight Intermediate HoldCo, Inc</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TradingSecuritiesDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lien debt investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TradingSecuritiesDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Trading</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TradingSecuritiesDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Debt investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TradingSecuritiesDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Trading Securities Debt, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestRateSwapMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest Rate Swap</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestRateSwapMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Rate Swap [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityNoteDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityNoteDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncentiveFeePayableCapitalGainBased_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Incentive fees on net capital gains accrued to affiliate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncentiveFeePayableCapitalGainBased_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Incentive Fee Payable, Capital-Gain-Based</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Earnings Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Balance, beginning of period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Balance, End of Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeOperatingAfterExpenseAndTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Income, Operating, after Expense and Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeOperatingAfterExpenseAndTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net Investment Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeOperatingAfterExpenseAndTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net investment income (loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeOperatingAfterExpenseAndTax_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net Investment Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Increase (decrease) in net assets resulting from operations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Increase (Decrease) in Net Assets Resulting from Operations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Increase (decrease) in net assets resulting from operations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_GalileoParentincMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Galileo Parent Inc</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_GalileoParentincMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Galileo ParentInc [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_GalileoParentincMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Galileo Parent Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PartnershipInterestOwnershipPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Partnership Interest Ownership Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PartnershipInterestOwnershipPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Partnership interest ownership percentage.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PartnershipInterestOwnershipPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Partnership/Membership interest of ownership</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentBasisSpreadVariableRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reference Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentBasisSpreadVariableRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Basis Spread, Variable Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeNumberOfInstrumentsHeld_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of derivative instruments held</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeNumberOfInstrumentsHeld_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative, Number of Instruments Held</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeNumberOfInstrumentsHeld_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Derivative, Number of Instruments Held, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EdgeBidcoBVMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Edge Bidco B.V.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EdgeBidcoBVMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Edge Bidco B V [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EdgeBidcoBVMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Edge Bidco BV</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Prepaid Expense and Other Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Prepaid expenses and other assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InvestmentsInAndAdvancesToAffiliatesAtFairValueRealizedGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Realized Gain/(Loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InvestmentsInAndAdvancesToAffiliatesAtFairValueRealizedGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments in and Advances to Affiliates, at Fair Value, Realized Gain (Loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InvestmentsInAndAdvancesToAffiliatesAtFairValueRealizedGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Investments in and advances to affiliates at fair value net realized gain loss.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_TwoZeroTwoNineJanuaryTwoZeroThreeZeroAndJulyTwoZeroThreeZeroNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Two Zero Two Nine, January Two Zero Three Zero and July Two Zero Three Zero Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_TwoZeroTwoNineJanuaryTwoZeroThreeZeroAndJulyTwoZeroThreeZeroNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Two zero two nine, january two zero three zero and july two zero three zero notes.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_TwoZeroTwoNineJanuaryTwoZeroThreeZeroAndJulyTwoZeroThreeZeroNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2029 Notes, January 2030 Notes and July 2030 Notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalYearFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Fiscal Year Focus</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableNature_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends Payable, Nature</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableNature_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Dividend</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SwapSettlement_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Swap settlement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SwapSettlement_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Swap Settlement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SwapSettlement_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Swap settlement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SwapSettlement_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Swap Settlement, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SwapSettlement_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Swap settlement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisGainLossIncludedInEarningsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisGainLossIncludedInEarningsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net Change in Unrealized Gains or Losses on Investments for Which Level 3 Inputs were Used in Determining Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_BtrsHoldingIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">BTRS Holding Inc. [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_BtrsHoldingIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">BTRS Holding Inc. [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_BtrsHoldingIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">BTRS Holdings, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnfundedLoanCommitmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unfunded Loan Commitment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnfundedLoanCommitmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unfunded Loan Commitments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfAllRemainingPreIncentiveFeeNetInvestmentIncomeQuarterlySubsequentToExchangeListing_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of all remaining pre-incentive fee net investment income quarterly subsequent to exchange listing</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfAllRemainingPreIncentiveFeeNetInvestmentIncomeQuarterlySubsequentToExchangeListing_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage of All Remaining Pre Incentive Fee Net Investment Income Quarterly Subsequent to Exchange Listing</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfAllRemainingPreIncentiveFeeNetInvestmentIncomeQuarterlySubsequentToExchangeListing_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of all remaining pre incentive fee net investment income quarterly subsequent to exchange listing.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForProceedsFromHedgeInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel">Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForProceedsFromHedgeInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments for (Proceeds from) Hedge, Investing Activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForProceedsFromHedgeInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeMaturityDates_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Maturity Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeMaturityDates_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative maturity date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeMaturityDates_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Settlement Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfMinimumQualifyingAssetsToPurchaseNonQualifyingAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of minimum qualifying assets to purchase non qualifying assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfMinimumQualifyingAssetsToPurchaseNonQualifyingAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Minimum Qualifying Assets To Purchase Non Qualifying Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfMinimumQualifyingAssetsToPurchaseNonQualifyingAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of minimum qualifying assets to purchase non-qualifying assets.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeBasisSpreadOnVariableRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative, Basis Spread on Variable Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeBasisSpreadOnVariableRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative, basis spread on variable rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_HippoXpaBidcoAbMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Hippo XPA Bidco AB</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_HippoXpaBidcoAbMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Hippo XPA Bidco AB [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_HippoXpaBidcoAbMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Hippo XPA Bidco AB</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SecondLienDebtInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Second-lien debt investments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SecondLienDebtInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Second Lien Debt Investments [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SecondLienDebtInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Second-lien Debt Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InvestmentsInAndAdvancesToAffiliatesOtherIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments in and Advances to Affiliates, Other Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InvestmentsInAndAdvancesToAffiliatesOtherIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Investments in and advances to affiliates, other income.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InvestmentsInAndAdvancesToAffiliatesOtherIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PaymentsForSettlementsOfInterestRateSwapsExcludingUpfrontFees_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Payments for settlements of interest rate swaps excluding upfront fees.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PaymentsForSettlementsOfInterestRateSwapsExcludingUpfrontFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments For Settlements Of Interest Rate Swaps Excluding Upfront Fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PaymentsForSettlementsOfInterestRateSwapsExcludingUpfrontFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payments for settlements of interest rate swaps excluding upfront fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetInvestmentIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Investment Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetInvestmentIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net Investment Income Before Income Taxes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Other Liabilities, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other payables to affiliate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InterestRateSwapTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Interest rate swap two.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InterestRateSwapTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Rate Swap Two [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InterestRateSwapTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest Rate Swap Two</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Disclosures [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_CA_lbl" xlink:role="http://www.xbrl.org/2003/role/label">CANADA</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_CA_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Canada</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyDistributionToShareholdersPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividends declared</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyDistributionToShareholdersPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Distribution to Shareholders, Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyDistributionToShareholdersPerShare_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Dividends declared</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InvestmentsAtFairValueTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Investments at fair value.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InvestmentsAtFairValueTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments At Fair Value [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_InvestmentsAtFairValueTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investments at Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MembersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Members' Equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MembersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Members' Equity, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MembersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Members' equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedPercentOfNetAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Investment percent of net assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedPercentOfNetAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Owned, Net Assets, Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedPercentOfNetAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of Net Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Line of credit, outstanding amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Line of Credit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Long-Term Line of Credit, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Instrument</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentRiskAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instrument [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentRiskAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative Instrument</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivatives, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial and Derivative Instruments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_RailAcquisitionsLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Rail Acquisitions L L C [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_RailAcquisitionsLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Rail acquisitions L L C.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_RailAcquisitionsLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Rail Acquisitions LLC</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ScheduleOfIndustryCompositionOfInvestmentPortfolioAtFairValueTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Industry Composition of Investment Portfolio At Fair Value [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ScheduleOfIndustryCompositionOfInvestmentPortfolioAtFairValueTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of industry composition of investment portfolio at fair value.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ScheduleOfIndustryCompositionOfInvestmentPortfolioAtFairValueTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Industry/Geographic Composition of SCP's Portfolio At Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OpenSwapContractIdentifierAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Open Swap Contract, Identifier [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_Security12bTitle_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Title of 12(b) Security</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FederalFundsEffectiveSwapRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Federal Funds Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FederalFundsEffectiveSwapRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fed Funds Effective Rate Overnight Index Swap Rate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instruments and Hedging Activities Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivatives</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SkyBidcoSPAMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sky Bidco S.p.A</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SkyBidcoSPAMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sky Bidco S.p.A [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SkyBidcoSPAMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Sky Bidco S.p.A.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedInvestmentsPercentOfNetAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Restricted Investments, Percent of Net Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedInvestmentsPercentOfNetAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value of securities as percentage of net assets in percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related and Nonrelated Parties [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Related Party</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collaborative Arrangement and Arrangement Other than Collaborative [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Expense [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2023Q4DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">O 2023 Q4 Dividends [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2023Q4DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">O 2023 Q4 dividends.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2023Q4DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">O2023 Q4 Dividends [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_LynxBidcoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Lynx bidCo.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_LynxBidcoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lynx BidCo [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_LynxBidcoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lynx BidCo</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CommunicationsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Communications.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CommunicationsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Communications [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CommunicationsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Communications</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ConsolidatedEntitiesAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Consolidated Entities [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AdjustedTermSimpleSecuredOvernightFinancingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Adjusted Term SOFR</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AdjustedTermSimpleSecuredOvernightFinancingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjusted Term Simple Secured Overnight Financing [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AdjustedTermSimpleSecuredOvernightFinancingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Adjusted term simple secured overnight financing.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Changes in operating assets and liabilities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LettersOfCreditOutstandingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Letters of Credit Outstanding, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LettersOfCreditOutstandingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issuance of letters of credit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MembersEquityFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Members Equity Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MembersEquityFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Members equity fair value.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MembersEquityFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value of ownership interest members' equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Recurring and Nonrecurring [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Paid-in Capital [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ApteanIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Aptean Inc [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ApteanIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Aptean, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ApteanIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Aptean Inc</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_GB_lbl" xlink:role="http://www.xbrl.org/2003/role/label">UNITED KINGDOM</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementLocationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Income Location, Balance [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementLocationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income Statement Location</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ChangeInAccountingPrincipleAccountingStandardsUpdateAdoptionDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Change in Accounting Principle, Accounting Standards Update, Adoption Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ChangeInAccountingPrincipleAccountingStandardsUpdateAdoptionDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Change in accounting principle, accounting standards update, adoption date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_TradingSymbol_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Trading Symbol</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2024Q1DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">O 2024 Q1 Dividends.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2024Q1DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">O 2024 Q1 Dividends [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2024Q1DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividend Declared on March 29, 2024</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net Unrealized Gain (Loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Debt and Equity Securities, Unrealized Gain (Loss), Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt and Equity Securities, Unrealized Gain (Loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transaction [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Related Party Transactions By Related Party [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EquityAndOtherInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Equity and other investments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EquityAndOtherInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity And Other Investments [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EquityAndOtherInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity and Other Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyFinancialHighlightsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Financial Highlights [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash Flows from Financing Activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility, Unused Capacity, Commitment Fee Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Line of credit facility, undrawn amount percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityExTransitionPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Ex Transition Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ManagementFeesGrossOfWaivers_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Management fees gross of waivers.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ManagementFeesGrossOfWaivers_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Management Fees Gross of Waivers</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ManagementFeesGrossOfWaivers_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Management fees gross of waivers</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurement Inputs and Valuation Techniques [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2024Q3DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">O 2024 Q3 Dividends.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2024Q3DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">O 2024 Q3 Dividends [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2024Q3DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividend Declared on September 30, 2024</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestAndDebtExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Interest Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestAndDebtExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest and Debt Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestAndDebtExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total Interest Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_TransportationConsumerSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Transportation Consumer Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_TransportationConsumerSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Transportation consumer sector.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_TransportationConsumerSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Transportation: Consumer</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementEquityComponentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Components [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementEquityComponentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity Components</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AVSCHoldingCorpMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">AVSC Holding Corp [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AVSCHoldingCorpMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">AVSC Holding Corp.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AVSCHoldingCorpMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">AVSC Holding Corp.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_OffsettingAssetsAndLiabilitiesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Offsetting assets and liabilities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_OffsettingAssetsAndLiabilitiesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Offsetting Assets And Liabilities [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_OffsettingAssetsAndLiabilitiesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Offsetting Assets and Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityComponentDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity Component</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityComponentDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Component [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_DividendsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividends to Common Shareholders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_DividendsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_DividendsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Dividends.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyFinancialHighlightsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial Highlights</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyFinancialHighlightsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Financial Highlights [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_FirstLienDebtInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">First-lien debt investments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_FirstLienDebtInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">First Lien Debt Investments [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_FirstLienDebtInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">First-lien Debt Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyInvestmentIncomeLossPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net investment income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyInvestmentIncomeLossPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Investment Income (Loss), Per Share, Basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeFairValueOfDerivativeNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative, fair value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeFairValueOfDerivativeNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Derivative, Fair Value, Net, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeFairValueOfDerivativeNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative, Fair Value, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeFairValueOfDerivativeNet_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Derivative, fair value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyIssuanceOfSharesPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Share Issuance, Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyIssuanceOfSharesPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net Common Share Issuance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyIssuanceOfSharesPerShare_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Net Common Share Issuance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfPreIncentiveFeeNetInvestmentIncomePayableQuarterly_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of pre-incentive fee net investment income payable quarterly.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfPreIncentiveFeeNetInvestmentIncomePayableQuarterly_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Pre Incentive Fee Net Investment Income Payable Quarterly</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_PercentageOfPreIncentiveFeeNetInvestmentIncomePayableQuarterly_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of total pre-Incentive fee net investment income payable quarterly</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_OtherIncomePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Other income.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_OtherIncomePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_OtherIncomePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Income [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssetCounterpartyNameExtensibleList_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Asset, Counterparty Name [Extensible Enumeration]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentNonconsolidatedInvesteeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Method Investment, Nonconsolidated Investee [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MaximumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maximum [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MaximumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maximum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendPayableDateToBePaidDayMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends Payable, Date to be Paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendPayableDateToBePaidDayMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payment Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentIncreaseDecreaseForPeriodNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Debt Instrument, Increase (Decrease), Net, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentIncreaseDecreaseForPeriodNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Increase (Decrease), Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentIncreaseDecreaseForPeriodNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Increase (decrease) in carrying value of notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DesignatedAsHedgingInstrumentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Designated as Hedging Instrument [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DesignatedAsHedgingInstrumentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Designated As Hedging Instrument</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CarlyleSecuredLendingIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Carlyle Secured Lending, Inc</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CarlyleSecuredLendingIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Carlyle Secured Lending, Inc. [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CarlyleSecuredLendingIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Carlyle Secured Lending, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EquityAndOtherInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity and other investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EquityAndOtherInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity And Other Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EquityAndOtherInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Equity and other investments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ErlingLuxBidcoSarlMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Erling Lux Bidco SARL</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ErlingLuxBidcoSarlMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Erling Lux Bidco Sarl</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ErlingLuxBidcoSarlMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Erling Lux Bidco SARL [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ErlingLuxBidcoSarlMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Erling Lux Bidco SARL.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statistical Measurement [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Statistical Measurement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Value, Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common shares, $0.001 par value; unlimited shares authorized (150,578,335 and 146,285,685, shares issued and outstanding, respectively)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_BenNevisMidcoLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Ben nevis midco limited</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_BenNevisMidcoLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Ben Nevis Midco Limited [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_BenNevisMidcoLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ben Nevis Midco Limited</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityExpirationDate1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Line of credit facility, stated maturity date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityExpirationDate1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility, Expiration Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividends</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HealthcareSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Healthcare Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HealthcareSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Healthcare</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_IncomeTaxesIncludingExciseTaxesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income Taxes, Including Excise Taxes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_IncomeTaxesIncludingExciseTaxesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Taxes Including Excise Taxes [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_IncomeTaxesIncludingExciseTaxesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Income taxes, including excise taxes.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CarlyleAffiliatesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Carlyle Affiliates</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CarlyleAffiliatesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Carlyle Affiliates [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CarlyleAffiliatesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Carlyle Affiliates.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CrewlineBuyerIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Crewline Buyer, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CrewlineBuyerIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Crewline Buyer, Inc [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CrewlineBuyerIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Crewline Buyer, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfFinancingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amortization of Debt Issuance Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfFinancingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amortization of deferred financing costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2025Q4DividendsOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">O 2025 Q4 Dividends [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2025Q4DividendsOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">O 2025 Q4 Dividends One [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_FR_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">France</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_FR_lbl" xlink:role="http://www.xbrl.org/2003/role/label">FRANCE</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transaction [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Related Party Transaction [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityRegistrantName_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Registrant Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Transfers into (out of) Level 3</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ContributedCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contributed Capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ContributedCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Contributed capital.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ContributedCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contributed capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Events [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_WeightedAverageYieldOnSeniorSecuredLoansAtAmortizedCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Yield on Senior Secured Loans at Amortized Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_WeightedAverageYieldOnSeniorSecuredLoansAtAmortizedCost_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Weighted average yield on senior secured loans at amortized cost.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_WeightedAverageYieldOnSeniorSecuredLoansAtAmortizedCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average yield on senior secured loans at amortized cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentAffiliatedIssuerControlledMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Affiliated Issuer, Controlled [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentAffiliatedIssuerControlledMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Controlled, Affiliated Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ConsolidatedEntitiesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Consolidated Entities [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SummaryOfSharesNewlyIssuedToShareholdersWhoHaveNotOptedOutOfDividendReinvestmentPlanTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Shares Newly Issued to Shareholders Who Have Not Opted Out of Dividend Reinvestment Plan</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SummaryOfSharesNewlyIssuedToShareholdersWhoHaveNotOptedOutOfDividendReinvestmentPlanTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Summary of Shares Newly Issued to Shareholders Who Have Not Opted Out of Dividend Reinvestment Plan [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SummaryOfSharesNewlyIssuedToShareholdersWhoHaveNotOptedOutOfDividendReinvestmentPlanTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Summary of shares newly issued to shareholders who have not opted out of dividend reinvestment plan.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ArrowbuyerIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Arrow Buyer, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ArrowbuyerIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">ArrowBuyer, Inc. Member</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ArrowbuyerIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Arrow Buyer, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from issuance of common shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Issuance of Common Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Proceeds From Issuance Of Common Stock, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Proceeds received</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Repayments / redemptions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value of Level 3 Investments at Fair Value Significant Unobservable Inputs Used in Valuations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsidiary, Ownership Percentage, Noncontrolling Owner</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Non-controlling investments percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_LimitedLiabilityCompanyAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Limited Liability Company Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_LimitedLiabilityCompanyAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Limited liability company agreement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_LimitedLiabilityCompanyAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Limited Liability Company Agreement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Common Stock, Shares Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_OrganizationPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Organization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_OrganizationPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Organization [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_OrganizationPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Organization policy.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_WeightedAverageYieldOnSeniorSecuredLoansAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average yield on senior secured loans at fair value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_WeightedAverageYieldOnSeniorSecuredLoansAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Yield on Senior Secured Loans at Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_WeightedAverageYieldOnSeniorSecuredLoansAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Weighted average yield on senior secured loans at fair value.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetAssetValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Net asset value, beginning of period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetAssetValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net Asset Value Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetAssetValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net Asset Value per Share as of the End of the Quarter</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetAssetValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Net asset value, end of period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyFinancialHighlightsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Financial Highlights [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Financing Receivable [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class of Financing Receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Statement [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RatioOfIndebtednessToNetCapital1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Ratio of Indebtedness to Net Capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RatioOfIndebtednessToNetCapital1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Asset coverage ratio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CordanceOperationsLlcMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cordance Operations LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CordanceOperationsLlcMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Cordance Operations, LLC.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CordanceOperationsLlcMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cordance Operations LLC</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EquityInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EquityInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Investments [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EquityInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Equity Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EducationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Education.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EducationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Education [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EducationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Education</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_WeightedAverageMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted Average</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_WeightedAverageMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SummaryOfGeographicCompositionOfInvestmentsAtFairValueTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Geographic Composition of Investments at Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SummaryOfGeographicCompositionOfInvestmentsAtFairValueTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Summary Of Geographic Composition Of Investments At Fair Value [Table Text Block]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AssetCoveragePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Asset coverage percentage.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AssetCoveragePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Asset coverage percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Issuance of common shares</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EDBParentLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">EDB Parent, LLC</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EDBParentLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">EDB Parent, LLC.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ConsumerGoodsDurableSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Consumer goods durable sector.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentFaceAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Aggregate principal amount</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentFaceAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Senior Secured Loans</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosureOfAssetAndLiabilityNotMeasuredAtFairValueTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Disclosure of Asset and Liability Not Measured at Fair Value [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosureOfAssetAndLiabilityNotMeasuredAtFairValueTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Disclosure Of Asset And Liability Not Measured At Fair Value [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealizedAndUnrealizedGainLossInvestmentDerivativeAndForeignCurrencyTransactionOperatingAfterTaxAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain (Loss), Investment and Derivative, Operating, and Foreign Currency Transaction, after Tax [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealizedAndUnrealizedGainLossInvestmentDerivativeAndForeignCurrencyTransactionOperatingAfterTaxAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unrealized and Realized Gains (Losses):</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AdministrationAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Administration agreement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AdministrationAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Administration Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AdministrationAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Administration Agreement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_OrganizationAndOfferingExpensesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Organization and Offering Expenses</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_OrganizationAndOfferingExpensesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Organization and offering expenses.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CostModelMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Cost model.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_BlackScholesModelMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Black Scholes model.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LetterOfCreditMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Letter of Credit [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LetterOfCreditMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Letter of Credit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalents, Policy [Policy Text Block]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_VelocityClinicalResearchIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Velocity Clinical Research Inc [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_VelocityClinicalResearchIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Velocity clinical research inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_VelocityClinicalResearchIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Velocity Clinical Research, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Cash, Cash Equivalents and Restricted Cash, End of Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Cash, cash equivalents and restricted cash, beginning of period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyFinancialCommitmentToInvesteeFutureAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Financial Support to Investee Contractually Required, Not Provided, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyFinancialCommitmentToInvesteeFutureAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total Portfolio Company Commitments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Distributable Earnings</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retained Earnings [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Distributable Earnings and Accumulated Net Loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_LeisureProductsAndServicesSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Leisure Products &amp; Services</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_LeisureProductsAndServicesSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Leisure Products and Services Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_LeisureProductsAndServicesSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Leisure products and services sector.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel1Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Level 1</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel1Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 1 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfStockLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Stock [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfStockLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class Of Stock [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Financing Activity, Including Discontinued Operation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net Cash Provided by (Used in) Financing Activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Outstanding Principal</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Notes Payable, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Notes Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net change in unrealized gains (losses)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ChangeInAccountingPrincipleAccountingStandardsUpdateAdopted_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Change in Accounting Principle, Accounting Standards Update, Adopted [true false]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedUnderlyingFaceAmountAtMarketValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment, par</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedUnderlyingFaceAmountAtMarketValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Owned, Face Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SlBuyerCorpMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">SL Buyer Corp [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SlBuyerCorpMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">SL Buyer Corp.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SlBuyerCorpMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">SL Buyer Corp</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ManagementFeePayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Management Fee Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ManagementFeePayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Management fees payable to affiliate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_FI_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Finland</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_FI_lbl" xlink:role="http://www.xbrl.org/2003/role/label">FINLAND</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CoupaHoldingsLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Coupa Holdings LLC.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CoupaHoldingsLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Coupa Holdings, LLC</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AutoAftermarketAndServicesSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Auto Aftermarket and Services Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AutoAftermarketAndServicesSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Auto aftermarket and services sector.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_AutoAftermarketAndServicesSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Auto Aftermarket &amp; Services</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total investments at fair value</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AlternativeInvestment_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Debt investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AlternativeInvestment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AlternativeInvestment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Alternative Investment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NonoperatingIncomeExpenseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Nonoperating Income (Expense) [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NonoperatingIncomeExpenseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sales proceeds</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Sales proceeds</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeContractTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Contract [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeContractTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative Contract</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SignificantAccountingPoliciesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Significant Accounting Policies [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SignificantAccountingPoliciesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Significant accounting policies.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiscalPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fiscal Period, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiscalPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fiscal Year End</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SecuredOvernightFinancingRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">SOFR</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_TelecommunicationsSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Telecommunications Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_TelecommunicationsSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Telecommunications sector.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_TelecommunicationsSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Telecommunications</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_DividendsPayableDateOfSharesIssuedDayMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Dividends payable date of shares issued day month and year.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_DividendsPayableDateOfSharesIssuedDayMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividends date shares issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Securities Available For Sale [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityInteractiveDataCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Interactive Data Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementLocationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Income Location, Balance [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementLocationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income Statement Location</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_WranglerTopcoLlcMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Wrangler TopCo, LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_WranglerTopcoLlcMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Wrangler TopCo, LLC.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_WranglerTopcoLlcMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Wrangler Topco, LLC</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash Flows from Operating Activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accretion (Amortization) of Discounts and Premiums, Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Net amortization of discount on investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_HirevueIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Hirevue, Inc [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_HirevueIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Hirevue, inc member.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_HirevueIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">HireVue, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EnvironmentalIndustriesSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Environmental Industries Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EnvironmentalIndustriesSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Environmental industries sector.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EnvironmentalIndustriesSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Environmental Industries</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentCompanyFinancialHighlightsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Company, Financial Highlights [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2025Q1BaseDividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">O2025 Q1 Base Dividends [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2025Q1BaseDividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">O2025 Q1 base dividends.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityTaxIdentificationNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Tax Identification Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CapitalCommitmentReceivedFormInvestors_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Capital commitment received form investors</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CapitalCommitmentReceivedFormInvestors_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Capital Commitment Received form Investors</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CapitalCommitmentReceivedFormInvestors_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Capital commitment received form investors.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MediaBroadcastingAndSubscriptionSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Media Broadcasting and Subscription Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MediaBroadcastingAndSubscriptionSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Media broadcasting and subscription sector.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MediaBroadcastingAndSubscriptionSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Media: Broadcasting &amp; Subscription</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net realized gains (losses)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ExciseAndOtherTaxesPaidDuringThePeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Excise and other taxes paid during the period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ExciseAndOtherTaxesPaidDuringThePeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Excise And Other Taxes Paid During The Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ExciseAndOtherTaxesPaidDuringThePeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Excise and other taxes paid during the period.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ConsumerServicesSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Consumer Services Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ConsumerServicesSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Consumer services sector.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ConsumerServicesSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Consumer Services</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromHedgeInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Received</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromHedgeInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Hedge, Investing Activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromHedgeInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Received</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_LocalPhoneNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Local Phone Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transaction [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Related Party Transaction</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GrossInvestmentIncomeOperating_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gross Investment Income, Operating</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GrossInvestmentIncomeOperating_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total Investment Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GrossInvestmentIncomeOperating_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Investment Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross Amount of Recognized Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Asset, Gross Asset Including Not Subject to Master Netting Arrangement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfFinancingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Payments of Financing Costs, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfFinancingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments of Financing Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfFinancingCosts_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Deferred financing costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EnergyOilAndGasSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Energy: Oil &amp; Gas</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EnergyOilAndGasSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Energy Oil and Gas Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EnergyOilAndGasSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Energy oil and gas sector.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingPoliciesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Policies [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_RealizedGainsLossesOnIncomeTaxProvision_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Realized Gains Losses On Income Tax Provision</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_RealizedGainsLossesOnIncomeTaxProvision_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Realized gains losses on income tax provision.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_RealizedGainsLossesOnIncomeTaxProvision_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income tax provision</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_RealizedGainsLossesOnIncomeTaxProvision_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">Income tax provision</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Shares Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Common Shares Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Shares, Dividend Reinvestment Plan</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock issued in connection with dividend reinvestment plan, Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeOperatingPaidInKind_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Income, Operating, Paid in Kind</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeOperatingPaidInKind_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Paid-in-kind interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeOperatingPaidInKind_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Paid-in-kind interest income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MetalsAndMiningSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Metals and Mining Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MetalsAndMiningSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Metals and mining sector.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MetalsAndMiningSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Metals &amp; Mining</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ProceedsFromInvestmentsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from investments, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ProceedsFromInvestmentsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds From Investments Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_ProceedsFromInvestmentsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Proceeds from investments, net.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_LIHAHoldcoBVMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">LIHA Holdco B V [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_LIHAHoldcoBVMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">LIHA Holdco B.V .</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_LIHAHoldcoBVMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">LIHA Holdco B.V.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_OtherMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Other.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_OtherMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_OtherMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_JanuaryTwoThousandThirtyNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">January 2030 Notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_JanuaryTwoThousandThirtyNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">January Two Thousand Thirty Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_JanuaryTwoThousandThirtyNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">January two thousand thirty notes.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2025Q2DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">O 2025 Q2 Dividends [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2025Q2DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">O 2025 Q2 dividends.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_O2025Q2DividendsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">O2025 Q2 Dividends [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_AffiliatedEntityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Affiliated Entity [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_AffiliatedEntityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Affiliated Entity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfStockByClassTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock, Class of Stock [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfStockByClassTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Stock By Class [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorizedUnlimited_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares Authorized, Unlimited [Fixed List]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Emerging Growth Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MediaAdvertisingPrintingAndPublishingSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Media Advertising, Printing and Publishing Sector [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MediaAdvertisingPrintingAndPublishingSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Media advertising, printing and publishing Sector.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_MediaAdvertisingPrintingAndPublishingSectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Media: Advertising, Printing &amp; Publishing</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_SE_lbl" xlink:role="http://www.xbrl.org/2003/role/label">SWEDEN</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_SE_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sweden</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EuroInterbankOfferRateEURIBORMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Euro Interbank Offer Rate (EURIBOR) [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_SterlingOvernightIndexAverageRateSONIAMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Sterling overnight index average rate (SONIA).</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_NorwegianInterbankOfferedRateNIBORMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Norwegian interbank offered rate (NIBOR).</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_NorwegianInterbankOfferedRateNIBORMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Norwegian Interbank Offered Rate (NIBOR) [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_EuroInterbankOfferRateEURIBORMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Euro interbank offer rate (EURIBOR).</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ck0001925309_CanadianOvernightRepoRateAverageCORRAMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Canadian Overnight Repo Rate Average (CORRA).</link:label>
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  <xsd:element id="ck0001925309_EquityInvestments" name="EquityInvestments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001925309_JointVentureInvestmentsMember" name="JointVentureInvestmentsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_RetailAndConsumerProductsMember" name="RetailAndConsumerProductsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_EnvironmentalIndustriesSectorMember" name="EnvironmentalIndustriesSectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_ForeignCurrencyTransactionGainLossRealized1" name="ForeignCurrencyTransactionGainLossRealized1" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001925309_SecondLienDebtInvestmentsMember" name="SecondLienDebtInvestmentsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_BeamTherapeuticsIncMember" name="BeamTherapeuticsIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_SlBuyerCorpMember" name="SlBuyerCorpMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_ArtisanBidcoIncMember" name="ArtisanBidcoIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_DeferredTaxLiabilityPertainingToNetUnrealizedGainsLossFromInvestments" name="DeferredTaxLiabilityPertainingToNetUnrealizedGainsLossFromInvestments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001925309_ReimbursementOfTransactionRelatedExpensesPolicyTextBlock" name="ReimbursementOfTransactionRelatedExpensesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_ProceedsFromInvestmentsNet" name="ProceedsFromInvestmentsNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001925309_IncentiveFeesOnCapitalGains" name="IncentiveFeesOnCapitalGains" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001925309_JointVentureInvestmentsCurrentAndNoncurrent" name="JointVentureInvestmentsCurrentAndNoncurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001925309_SkylarkUkDebtcoMember" name="SkylarkUkDebtcoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_PercentageOfManagementFeesInExcessOfAverageAggregateDrawnCapital" name="PercentageOfManagementFeesInExcessOfAverageAggregateDrawnCapital" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_OmnigoSoftwareLLCMember" name="OmnigoSoftwareLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_InvestmentsInAndAdvancesToAffiliatesAtFairValueNetChangeInUnrealizedGainLoss" name="InvestmentsInAndAdvancesToAffiliatesAtFairValueNetChangeInUnrealizedGainLoss" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001925309_PaymentsForSettlementsOfInterestRateSwapsExcludingUpfrontFees" name="PaymentsForSettlementsOfInterestRateSwapsExcludingUpfrontFees" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001925309_ConsumerServicesSectorMember" name="ConsumerServicesSectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_NortheastMember" name="NortheastMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_ScorpioBidcoMember" name="ScorpioBidcoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_DividendsDeclaredDuringThePeriod" name="DividendsDeclaredDuringThePeriod" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001925309_SummaryOfStructuredCreditPartnersPortfolioTableTextBlock" name="SummaryOfStructuredCreditPartnersPortfolioTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_InsuranceMember" name="InsuranceMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_EquityAndOtherInvestments" name="EquityAndOtherInvestments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001925309_PercentageOfManagementFeeCalculatedOnGrossAssets" name="PercentageOfManagementFeeCalculatedOnGrossAssets" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_PercentageOfPreIncentiveFeeNetInvestmentIncomeHurdleRateQuarterly" name="PercentageOfPreIncentiveFeeNetInvestmentIncomeHurdleRateQuarterly" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_MeasurementInputTransactionValueMember" name="MeasurementInputTransactionValueMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_PercentageOfCapitalGainIncentiveFeePriorToExchangeListing" name="PercentageOfCapitalGainIncentiveFeePriorToExchangeListing" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_CapitalContributedToJointVenture" name="CapitalContributedToJointVenture" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001925309_WeightedAverageYieldRate" name="WeightedAverageYieldRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_O2023Q4DividendsMember" name="O2023Q4DividendsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_SouthMember" name="SouthMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_LIHAHoldcoBVMember" name="LIHAHoldcoBVMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_MidwestMember" name="MidwestMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_NondeductibleFederalExciseTaxPercentage" name="NondeductibleFederalExciseTaxPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_SummaryOfNetRealizedAndUnrealizedGainsAndLossesOnDerivativeInstrumentsNotDesignatedAsQualifyingHedgeTableTextBlock" name="SummaryOfNetRealizedAndUnrealizedGainsAndLossesOnDerivativeInstrumentsNotDesignatedAsQualifyingHedgeTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_AssetCoveragePercentage" name="AssetCoveragePercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_IncentiveFeesAccruedRelatedToExpenseReversalCapitalGainsFees" name="IncentiveFeesAccruedRelatedToExpenseReversalCapitalGainsFees" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001925309_CurrentMarketPricePerSharePercentage" name="CurrentMarketPricePerSharePercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_SwapSettlement" name="SwapSettlement" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001925309_O2025Q3DividendsMember" name="O2025Q3DividendsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_InvestmentsInAndAdvancesToAffiliatesAtFairValueRealizedGainLoss" name="InvestmentsInAndAdvancesToAffiliatesAtFairValueRealizedGainLoss" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001925309_WestMember" name="WestMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_LynxBidcoMember" name="LynxBidcoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_OrganizationPolicyTextBlock" name="OrganizationPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_ElectronicsMember" name="ElectronicsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_UsaDebuskLlcMember" name="UsaDebuskLlcMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_PercentageOfExcessPreIncentiveFeeNetInvestmentIncomeForImmediatePrecedingCalendarQuarter" name="PercentageOfExcessPreIncentiveFeeNetInvestmentIncomeForImmediatePrecedingCalendarQuarter" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_PercentageOfOrganizationAndOfferingExpenses" name="PercentageOfOrganizationAndOfferingExpenses" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_SubscriptionFacilityMember" name="SubscriptionFacilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_OtherIncomePolicyTextBlock" name="OtherIncomePolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_MinimumPercentageOfVotingSecuritiesInInvestmentPortfolio" name="MinimumPercentageOfVotingSecuritiesInInvestmentPortfolio" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_DividendsPayableDateOfSharesIssuedDayMonthAndYear" name="DividendsPayableDateOfSharesIssuedDayMonthAndYear" type="xbrli:dateItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_ArcwoodEnvironmentalIncMember" name="ArcwoodEnvironmentalIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_JulyTwoThousandThirtyNotesMember" name="JulyTwoThousandThirtyNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_O2024Q2DividendsMember" name="O2024Q2DividendsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_EquityAndOtherInvestmentsMember" name="EquityAndOtherInvestmentsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_TruckLiteCoLlcMember" name="TruckLiteCoLlcMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_PharmaceuticalsMember" name="PharmaceuticalsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_ChemicalsMember" name="ChemicalsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_ConsumerGoodsNon-DurableSectorMember" name="ConsumerGoodsNon-DurableSectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_PaidInKindInterestIncome" name="PaidInKindInterestIncome" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001925309_HippoXpaBidcoAbMember" name="HippoXpaBidcoAbMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_IncreaseDecreaseInInterestReceivablePaidInKind" name="IncreaseDecreaseInInterestReceivablePaidInKind" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001925309_SterlingOvernightIndexAverageRateSONIAMember" name="SterlingOvernightIndexAverageRateSONIAMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_PercentageOfNetProceedsOfSaleOfEquityInterests" name="PercentageOfNetProceedsOfSaleOfEquityInterests" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_InvestmentAdvisoryAgreementMember" name="InvestmentAdvisoryAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_BabylonFincoLimitedMember" name="BabylonFincoLimitedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_WeightedAverageYieldOnSeniorSecuredLoansAtFairValue" name="WeightedAverageYieldOnSeniorSecuredLoansAtFairValue" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_LimitedLiabilityCompanyAgreementMember" name="LimitedLiabilityCompanyAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_UtilitiesElectricSectorMember" name="UtilitiesElectricSectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_WranglerTopcoLlcMember" name="WranglerTopcoLlcMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_HighTechIndustriesSectorMember" name="HighTechIndustriesSectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_HeritageEnvironmentalServicesIncMember" name="HeritageEnvironmentalServicesIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_HotelGamingAndLeisureMember" name="HotelGamingAndLeisureMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_NetExpenseForFederalExciseTaxAndOtherTaxes" name="NetExpenseForFederalExciseTaxAndOtherTaxes" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001925309_EquitiesMember" name="EquitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_InternetServicesMember" name="InternetServicesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersWithinLevel3" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersWithinLevel3" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001925309_WithManagementFeeWaiverMember" name="WithManagementFeeWaiverMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_EducationMember" name="EducationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_OtherMember" name="OtherMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_ExciseAndOtherTaxesPaidDuringThePeriod" name="ExciseAndOtherTaxesPaidDuringThePeriod" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001925309_InvestmentsInAndAdvancesToAffiliatesOtherIncome" name="InvestmentsInAndAdvancesToAffiliatesOtherIncome" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001925309_IngenovisHealthFinanceLLCMember" name="IngenovisHealthFinanceLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_AdviserMember" name="AdviserMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_SignificantAccountingPoliciesTable" name="SignificantAccountingPoliciesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_ArrowheadPharmaceuticalsIncMember" name="ArrowheadPharmaceuticalsIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_AdjustedTermSimpleSecuredOvernightFinancingMember" name="AdjustedTermSimpleSecuredOvernightFinancingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_RealizedGainsLossesOnIncomeTaxProvision" name="RealizedGainsLossesOnIncomeTaxProvision" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001925309_EDBParentLLCMember" name="EDBParentLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_KryptonaBidCoUSLLCMember" name="KryptonaBidCoUSLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_FirstLienDebtInvestmentsMember" name="FirstLienDebtInvestmentsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_TotalCommitments" name="TotalCommitments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001925309_JanuaryTwoThousandThirtyNotesMember" name="JanuaryTwoThousandThirtyNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_ChemicalsPlasticsAndRubberSectorMember" name="ChemicalsPlasticsAndRubberSectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_CoupaHoldingsLLCMember" name="CoupaHoldingsLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_MindBodyIncMember" name="MindBodyIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_O2025Q1DividendsMember" name="O2025Q1DividendsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_FullsteamOperationsLlcMember" name="FullsteamOperationsLlcMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_ContainersPackagingAndGlassMember" name="ContainersPackagingAndGlassMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_ElysiumBidCoLimitedMember" name="ElysiumBidCoLimitedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_InvestmentsAtFairValueTextBlock" name="InvestmentsAtFairValueTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_IncomeTaxesIncludingExciseTaxesAmountRounded" name="IncomeTaxesIncludingExciseTaxesAmountRounded" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001925309_ManagementFeesGrossOfWaivers" name="ManagementFeesGrossOfWaivers" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001925309_AdjustedDailySimpleSecuredOvernightFinancingMember" name="AdjustedDailySimpleSecuredOvernightFinancingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_ScheduleOfComponentsOfInterestExpenseTableTextBlock" name="ScheduleOfComponentsOfInterestExpenseTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_VarinemGermanBidcoGmbhMember" name="VarinemGermanBidcoGmbhMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_BtrsHoldingIncMember" name="BtrsHoldingIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_PercentageOfPreIncentiveFeeNetInvestmentIncomePayableQuarterlySubsequentToExchangeListing" name="PercentageOfPreIncentiveFeeNetInvestmentIncomePayableQuarterlySubsequentToExchangeListing" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_SecuredOvernightFinancingRateMember" name="SecuredOvernightFinancingRateMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_ManufacturingMember" name="ManufacturingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_ScheduleOfContributedCapitalAndUnfundedCommitmentsTableTextBlock" name="ScheduleOfContributedCapitalAndUnfundedCommitmentsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_ScheduleOfIndustryCompositionOfInvestmentPortfolioAtFairValueTableTextBlock" name="ScheduleOfIndustryCompositionOfInvestmentPortfolioAtFairValueTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_DividendsTextBlock" name="DividendsTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_CanadianOvernightRepoRateAverageCORRAMember" name="CanadianOvernightRepoRateAverageCORRAMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_AerospaceAndDefenseSectorMember" name="AerospaceAndDefenseSectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_CirrusBidcoLtdMember" name="CirrusBidcoLtdMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_TransportationMember" name="TransportationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_NumberOfInvestments" name="NumberOfInvestments" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_LegPurchaserIncMember" name="LegPurchaserIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_OilGasAndConsumableFuelsMember" name="OilGasAndConsumableFuelsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_O2025Q4DividendsOneMember" name="O2025Q4DividendsOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_AledadeIncMember" name="AledadeIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_TwoThousandTwentyNineAndTwoThousandThirtyNotesMember" name="TwoThousandTwentyNineAndTwoThousandThirtyNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_CapitalCommitmentsFromAffiliates" name="CapitalCommitmentsFromAffiliates" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001925309_AffiliatedMember" name="AffiliatedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_AzuriteIntermediateHoldingsIncMember" name="AzuriteIntermediateHoldingsIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_PercentageOfAllRemainingPreIncentiveFeeNetInvestmentIncomeQuarterlySubsequentToExchangeListing" name="PercentageOfAllRemainingPreIncentiveFeeNetInvestmentIncomeQuarterlySubsequentToExchangeListing" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_SummaryOfGeographicCompositionOfInvestmentsAtFairValueTableTextBlock" name="SummaryOfGeographicCompositionOfInvestmentsAtFairValueTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_DiscoParentIncMember" name="DiscoParentIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_RailAcquisitionsLLCMember" name="RailAcquisitionsLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_MezzanineDebtInvestmentsMember" name="MezzanineDebtInvestmentsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_PercentageOfInvestmentsAtFairValue" name="PercentageOfInvestmentsAtFairValue" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_DividendsPolicyTextBlock" name="DividendsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_O2025Q2DividendsMember" name="O2025Q2DividendsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_StructuredCreditPartnersJVLLCMember" name="StructuredCreditPartnersJVLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_WeightedAverageYieldOnSeniorSecuredLoansAtAmortizedCost" name="WeightedAverageYieldOnSeniorSecuredLoansAtAmortizedCost" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_BusinessServicesMember" name="BusinessServicesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_WholesaleSectorMember" name="WholesaleSectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_LineOfCreditFacilityStatedMaturityDate" name="LineOfCreditFacilityStatedMaturityDate" type="xbrli:dateItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_MediaAdvertisingPrintingAndPublishingSectorMember" name="MediaAdvertisingPrintingAndPublishingSectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_O2024Q3DividendsMember" name="O2024Q3DividendsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_InterestRateSwapOneMember" name="InterestRateSwapOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_TelecommunicationsSectorMember" name="TelecommunicationsSectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_DiversifiedFinancialServicesMember" name="DiversifiedFinancialServicesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_EquityInvestmentsMember" name="EquityInvestmentsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_MeritSoftwareFinanceHoldingsLlcMember" name="MeritSoftwareFinanceHoldingsLlcMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_TangoManagementConsultingLLCMember" name="TangoManagementConsultingLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_SeverinAcquisitionLLCMember" name="SeverinAcquisitionLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_HMPOmnimediaLLCMember" name="HMPOmnimediaLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_NorwegianInterbankOfferedRateNIBORMember" name="NorwegianInterbankOfferedRateNIBORMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_InterestRateSwaps" name="InterestRateSwaps" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001925309_InvestmentsFairValueDisclosureNet" name="InvestmentsFairValueDisclosureNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001925309_TwoThousandThirtyNotesMember" name="TwoThousandThirtyNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_BanyanSoftwareHoldingLlcMember" name="BanyanSoftwareHoldingLlcMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_DeputyChiefFinancialOfficerMember" name="DeputyChiefFinancialOfficerMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_IncomeTaxesIncludingExciseTaxesPolicyTextBlock" name="IncomeTaxesIncludingExciseTaxesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_PrincipalAmountOutstandingAndAccruedInterest" name="PrincipalAmountOutstandingAndAccruedInterest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001925309_PdiTaHoldingsIncMember" name="PdiTaHoldingsIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_UtilitiesOilAndGasSectorMember" name="UtilitiesOilAndGasSectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_StockholmInterbankOfferedRateSTIBORMember" name="StockholmInterbankOfferedRateSTIBORMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_JointVentureInvestments" name="JointVentureInvestments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001925309_FlightIntermediateHoldCoIncMember" name="FlightIntermediateHoldCoIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_ShiftmoveGmbhMember" name="ShiftmoveGmbhMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_PartnershipInterestOwnershipPercentage" name="PartnershipInterestOwnershipPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_EdgeBidcoBVMember" name="EdgeBidcoBVMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_ErlingLuxBidcoSarlMember" name="ErlingLuxBidcoSarlMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_SkyBidcoSPAMember" name="SkyBidcoSPAMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_MediaBroadcastingAndSubscriptionSectorMember" name="MediaBroadcastingAndSubscriptionSectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_InvestmentDueDate" name="InvestmentDueDate" type="xbrli:gYearMonthItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_MediaDiversifiedAndProductionSectorMember" name="MediaDiversifiedAndProductionSectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_O2025Q1BaseDividendsMember" name="O2025Q1BaseDividendsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_PercentageOfFloatingRateLoans" name="PercentageOfFloatingRateLoans" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_AdministrationAgreementMember" name="AdministrationAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_InterestAndDividendIncomeRecognitionPolicyTextBlock" name="InterestAndDividendIncomeRecognitionPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_CarlyleAffiliatesMember" name="CarlyleAffiliatesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_ProceedsFromSettlementsOfInterestRateSwapsExcludingUpfrontFees" name="ProceedsFromSettlementsOfInterestRateSwapsExcludingUpfrontFees" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001925309_ResistanceHoldingsIncMember" name="ResistanceHoldingsIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_MetalsAndMiningSectorMember" name="MetalsAndMiningSectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_KangarooBidcoASMember" name="KangarooBidcoASMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_S2024Q2DividendsMember" name="S2024Q2DividendsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_AvalaraIncMember" name="AvalaraIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_RevolverMember" name="RevolverMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_RapidDataGmbhUnternehmensberatungMember" name="RapidDataGmbhUnternehmensberatungMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_CapitalCommitmentReceivedFormInvestors" name="CapitalCommitmentReceivedFormInvestors" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001925309_BctoBluebillBuyerIncMember" name="BctoBluebillBuyerIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_CarlyleGroupIncMember" name="CarlyleGroupIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetNetAmortizationOfDiscountOnInvestment" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetNetAmortizationOfDiscountOnInvestment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001925309_VelocityClinicalResearchIncMember" name="VelocityClinicalResearchIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_O2025Q4OneDividendsMember" name="O2025Q4OneDividendsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_ForestProductsAndPaperSectorMember" name="ForestProductsAndPaperSectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_RaptorUsBuyerIiCorpMember" name="RaptorUsBuyerIiCorpMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_SediverSPAMember" name="SediverSPAMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_UnfundedCommitments" name="UnfundedCommitments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001925309_ApellisPharmaceuticalsIncMember" name="ApellisPharmaceuticalsIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_TaxExpensePertainingToNetRealizedGainsRelatedToInvestments" name="TaxExpensePertainingToNetRealizedGainsRelatedToInvestments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ck0001925309_DelayedDrawRevolverMember" name="DelayedDrawRevolverMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_HumanResourceSupportServicesMember" name="HumanResourceSupportServicesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_SterlingOvernightInterbankAverageRateMember" name="SterlingOvernightInterbankAverageRateMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_TransportationCargoSectorMember" name="TransportationCargoSectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_FairValueOfAnEffectiveHedge" name="FairValueOfAnEffectiveHedge" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001925309_PercentageOfMinimumQualifyingAssetsToPurchaseNonQualifyingAssets" name="PercentageOfMinimumQualifyingAssetsToPurchaseNonQualifyingAssets" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_RainFocusLLCMember" name="RainFocusLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_BlackScholesModelMember" name="BlackScholesModelMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_EnergyOilAndGasSectorMember" name="EnergyOilAndGasSectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_AgreementTerminationPeriodWithoutPenalty" name="AgreementTerminationPeriodWithoutPenalty" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_LineOfCreditFacilityMaximumBorrowingCapacityUnderCertainCircumstances" name="LineOfCreditFacilityMaximumBorrowingCapacityUnderCertainCircumstances" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ck0001925309_EventusBuyerLLCMember" name="EventusBuyerLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_InterestRateSwapTwoMember" name="InterestRateSwapTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_O2025Q4DividendsMember" name="O2025Q4DividendsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_PercentageOfCapitalGainIncentiveFeeSubsequentToExchangeListing" name="PercentageOfCapitalGainIncentiveFeeSubsequentToExchangeListing" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ck0001925309_SixthStreetSpecialtyLendingIncMember" name="SixthStreetSpecialtyLendingIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_CommunicationsMember" name="CommunicationsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ck0001925309_SummaryOfIndustryCompositionOfInvestmentsAtFairValueTableTextBlock" name="SummaryOfIndustryCompositionOfInvestmentsAtFairValueTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
</xsd:schema>
