Simple type for the for attribute of <key>.
key.for.type is a restriction of xs:NMTOKEN
Allowed values: all, graph, node, edge, hyperedge, port and endpoint.

<?xml version="1.0" encoding="utf-16"?>
<xs:simpleType name="key.for.type" final="#all">
    <xs:annotation>
        <xs:documentation source="http://graphml.graphdrawing.org/" xml:lang="en">
      Simple type for the for attribute of &lt;key&gt;.
      key.for.type is a restriction of xs:NMTOKEN
      Allowed values: all, graph, node, edge, hyperedge, port and endpoint.
    </xs:documentation>
    </xs:annotation>
    <xs:restriction base="xs:NMTOKEN">
        <xs:enumeration value="all" />
        <xs:enumeration value="graphml" />
        <xs:enumeration value="graph" />
        <xs:enumeration value="node" />
        <xs:enumeration value="edge" />
        <xs:enumeration value="hyperedge" />
        <xs:enumeration value="port" />
        <xs:enumeration value="endpoint" />
    </xs:restriction>
</xs:simpleType>

• key.for.type
• g:for