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  <xs:element id="algr_DissolutionExpenses" name="DissolutionExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xs:element id="algr_PricePerUnit" name="PricePerUnit" type="dtr:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="algr_NumberOfAdditionalUnitsSold" name="NumberOfAdditionalUnitsSold" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <xs:element id="algr_WorkingCapitalDeficit" name="WorkingCapitalDeficit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xs:element id="algr_PrivateWarrantMember" name="PrivateWarrantMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="algr_TypeOfContributionDomainDomain" name="TypeOfContributionDomainDomain" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="algr_SecondContributionMember" name="SecondContributionMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="algr_AggregateGrossProceeds" name="AggregateGrossProceeds" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xs:element id="algr_PercentageOfAllegroCommonStock" name="PercentageOfAllegroCommonStock" type="dtr:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="algr_WarrantsExercisableAfterTheCompletionOfTheInitialBusinessCombination" name="WarrantsExercisableAfterTheCompletionOfTheInitialBusinessCombination" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="algr_UnconvertedPublicShares" name="UnconvertedPublicShares" type="dtr:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="algr_UnderwritingAgreementMember" name="UnderwritingAgreementMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="algr_UnderwritingDiscountPercentage" name="UnderwritingDiscountPercentage" type="dtr:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="algr_DeferredUnderwritingDiscount" name="DeferredUnderwritingDiscount" type="dtr:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <xs:element id="algr_ScheduleOfFairValueHierarchyOfTheValuationInputsAbstract" name="ScheduleOfFairValueHierarchyOfTheValuationInputsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
</xs:schema>
