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  <xs:element id="ecg_GuarantorFixedMaximumAmountsGuaranteedYearThree" abstract="false" name="GuarantorFixedMaximumAmountsGuaranteedYearThree" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ecg_GuarantorFixedMaximumAmountsGuaranteedYearFour" abstract="false" name="GuarantorFixedMaximumAmountsGuaranteedYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ecg_GuarantorFixedMaximumAmountsGuaranteedAfterYearFour" abstract="false" name="GuarantorFixedMaximumAmountsGuaranteedAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ecg_GuarantorObligationsOutstanding" abstract="false" name="GuarantorObligationsOutstanding" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ecg_TransitionServicesAgreementMember" abstract="true" name="TransitionServicesAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ecg_SeparationAgreementTransitionServicesAgreementRecurringExpenses" abstract="false" name="SeparationAgreementTransitionServicesAgreementRecurringExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ecg_SeparationAgreementTransitionServicesAgreementPeriod" abstract="false" name="SeparationAgreementTransitionServicesAgreementPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="ecg_SEMMember" abstract="true" name="SEMMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ecg_BusinessCombinationEarnoutPaymentPercentageOfPurchasePriceMaximum" abstract="false" name="BusinessCombinationEarnoutPaymentPercentageOfPurchasePriceMaximum" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
</xs:schema>
