<xs:simpleType name="paymentSourceType" xmlns:xs="http://www.w3.org/2001/XMLSchema"> <xs:restriction base="xs:string"> <xs:enumeration value="ApplePay" /> <xs:enumeration value="ApplePayApp" /> <xs:enumeration value="ApplePayWeb" /> <xs:enumeration value="GooglePayApp" /> <xs:enumeration value="GooglePayWeb" /> </xs:restriction> </xs:simpleType>