<xsd:attribute name="iD" type="xsd:ID" use="optional">
    <xsd:annotation>
        <xsd:documentation source="Description">A unique identifying value assigned by the creating system. The ID attribute may be used to reference a primary-key value within a database or in a particular implementation.</xsd:documentation>
        <xsd:documentation source="Implementer">Assigned XSD Type: {http://www.w3.org/2001/XMLSchema}StringLength1to32</xsd:documentation>
        <xsd:appinfo>
            <otm:Equivalent context="fin" xmlns:otm="http://www.OpenTravel.org/ns/OTA2/AppInfo_v01_00">ID</otm:Equivalent>
            <otm:Example context="fin" xmlns:otm="http://www.OpenTravel.org/ns/OTA2/AppInfo_v01_00">2398379983749</otm:Example>
        </xsd:appinfo>
    </xsd:annotation>
</xsd:attribute>