<xs:element name="TagValues" minOccurs="0" xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xs:annotation>
    <xs:documentation>
      <p xmlns="http://Hps.Exchange.PosGateway">This field holds the tag data values.</p>
    </xs:documentation>
  </xs:annotation>
  <xs:complexType>
    <xs:simpleContent>
      <xs:extension base="xs:string">
        <xs:attribute name="source" use="required">
          <xs:annotation>
            <xs:documentation>
              <p xmlns="http://Hps.Exchange.PosGateway">This field specifies the source of the tag data value. It can be either chip or msd.</p>
            </xs:documentation>
          </xs:annotation>
          <xs:simpleType>
            <xs:restriction base="xs:string">
              <xs:enumeration value="chip">
                <xs:annotation>
                  <xs:documentation>
                    <p xmlns="http://Hps.Exchange.PosGateway">This value denotes that the tag data is for an EMV transaction.</p>
                  </xs:documentation>
                </xs:annotation>
              </xs:enumeration>
              <xs:enumeration value="msd">
                <xs:annotation>
                  <xs:documentation>
                    <p xmlns="http://Hps.Exchange.PosGateway">This value denotes that the tag data is for an MSD transaction.</p>
                  </xs:documentation>
                </xs:annotation>
              </xs:enumeration>
            </xs:restriction>
          </xs:simpleType>
        </xs:attribute>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
</xs:element>