<xs:element id="annotation" name="annotation" >
  <xs:annotation>
    <xs:documentation source="http://www.w3.org/TR/xmlschema-1/#element-annotation"/>
  </xs:annotation>
  <xs:complexType>
    <xs:complexContent mixed="false">
      <xs:extension base="xs:openAttrs">
        <xs:choice minOccurs="0" maxOccurs="unbounded">
          <xs:element ref="xs:appinfo"/>
          <xs:element ref="xs:documentation"/>
        </xs:choice>
        <xs:attribute name="id" type="xs:ID"/>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
</xs:element>