X3DPrototypeInstance

<xs:complexType name="X3DPrototypeInstance" abstract="true">
  <xs:annotation>
    <xs:appinfo>
      <xs:element name="metadata" type="SFNode" fixed="inputOutputField" default="X3DMetadataObject"/>
      <xs:attribute name="additionalInterface" type="xs:string" default="X3DNode"/>
      <xs:attribute name="componentName" type="xs:NMTOKEN" fixed="Core"/>
      <xs:attribute name="componentLevel" type="xs:positiveInteger" fixed="2"/>Base type for all prototype instances. Note that direct children nodes are disallowed, instead let fieldValue with type SFNode/MFNode contain them. Current practice is that, if desired, prototype authors must explicitly add the metadata SFNode field in the ProtoInterface.</xs:appinfo>
    <xs:documentation source="http://www.web3d.org/documents/specifications/19775-1/V3.3/Part01/components/core.html#X3DPrototypeInstance"/>
  </xs:annotation>
  <xs:sequence>
    <xs:element ref="fieldValue" minOccurs="0" maxOccurs="unbounded"/>
    <xs:element ref="IS" minOccurs="0"/>
    <xs:group ref="ChildContentModelCore" minOccurs="0">
      <xs:annotation>
        <xs:documentation>metadata</xs:documentation>
      </xs:annotation>
    </xs:group>
  </xs:sequence>
  <!-- Note slight naming variation in X3D Specification: the name for this abstract node interface does not end with 'Node'. -->
</xs:complexType>