<xs:element name="SiblingContainerCancelResponse">
    <xs:annotation>
        <xs:documentation>Response to a request to cancel a sibling container.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
        <xs:choice>
            <xs:element name="SiblingContainerCancelAccept">
                <xs:annotation>
                    <xs:documentation>
                    </xs:documentation>
                </xs:annotation>
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="CancelConfirmID" type="mailxml_base:s12" />
                    </xs:sequence>
                    <xs:attributeGroup ref="mailxml:SiblingIdentifierHeaderInfo" />
                </xs:complexType>
            </xs:element>
            <xs:element name="SiblingContainerCancelReject">
                <xs:annotation>
                    <xs:documentation>
                    </xs:documentation>
                </xs:annotation>
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="ReturnInfo" type="mailxml:returnInfoType" />
                    </xs:sequence>
                    <xs:attributeGroup ref="mailxml:SiblingIdentifierHeaderInfo" />
                </xs:complexType>
            </xs:element>
        </xs:choice>
    </xs:complexType>
</xs:element>