<xs:simpleType name="key.type.type" final="#all">
    <xs:annotation>
        <xs:documentation source="http://graphml.graphdrawing.org/(Dokumentation der Attributes Erweiterung; entsprechende Stelle.html)" xml:lang="en">

      Simple type for the attr.type attribute of &lt;key&gt;.

      key.type.type is final, that is, it may not be extended

                          or restricted.

      key.type.type is a restriction of xs:NMTOKEN

      Allowed values: boolean, int, long, float, double, string.

    </xs:documentation>
    </xs:annotation>
    <xs:restriction base="xs:NMTOKEN">
        <xs:enumeration value="boolean" />
        <xs:enumeration value="int" />
        <xs:enumeration value="long" />
        <xs:enumeration value="float" />
        <xs:enumeration value="double" />
        <xs:enumeration value="string" />
    </xs:restriction>
</xs:simpleType>

• key.type.type
• g:attr.type