src/app/zap-templates/zcl/zcl.xsd

<?xml version="1.0" encoding="UTF-8"?>

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
  <xs:annotation>
    <xs:documentation>
This schema describes the format of the XML files, that describe the ZCL specification.

(c) Copyright 2012, 2021, Silicon Laboratories Inc.
  </xs:documentation>
  </xs:annotation>
  <xs:simpleType name="integerWithHex">
    <xs:restriction base="xs:string">
      <xs:pattern value="[-+]?(0x[0-9A-Fa-f]+|[0-9]+)"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="uIntegerWithHex">
    <xs:restriction base="xs:string">
      <xs:pattern value="(0x[0-9A-Fa-f]+|[0-9]+)"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:complexType name="access">
    <xs:attribute name="op" type="xs:string"/>
    <xs:attribute name="role" type="xs:string"/>
    <xs:attribute name="privilege" type="xs:string"/>
    <xs:attribute name="modifier" type="xs:string"/>
  </xs:complexType>
  <xs:complexType name="eventField">
    <xs:attribute name="id" use="required" type="uIntegerWithHex"/>
    <xs:attribute name="name" use="required" type="xs:string"/>
    <xs:attribute name="type" use="required" type="xs:string"/>
    <xs:attribute name="array" type="xs:boolean"/>
    <xs:attribute name="isNullable" type="xs:boolean"/>
    <xs:attribute name="optional" type="xs:boolean" default="false"/>
    <xs:attribute name="min" type="integerWithHex"/>
    <xs:attribute name="max" type="integerWithHex"/>
  </xs:complexType>
  <xs:complexType name="tag">
    <xs:attribute name="name" use="required" type="xs:string"/>
    <xs:attribute name="description" use="required" type="xs:string"/>
  </xs:complexType>
  <xs:complexType name="arg">
    <xs:attribute name="id" type="uIntegerWithHex" />
    <xs:attribute name="min" type="integerWithHex"/>
    <xs:attribute name="max" type="integerWithHex"/>
    <xs:attribute name="arrayLength" type="xs:boolean"/>
    <xs:attribute name="array" type="xs:boolean"/>
    <xs:attribute name="default" type="xs:string"/>
    <xs:attribute name="description" type="xs:string"/>
    <xs:attribute name="introducedIn" type="zclSpecVersion"/>
    <xs:attribute name="removedIn" type="zclSpecVersion"/>
    <xs:attribute name="name" use="required"/>
    <xs:attribute name="type" use="required"/>
    <xs:attribute name="length" type="xs:int"/>
    <xs:attribute name="presentIf" type="xs:string"/>
    <xs:attribute name="optional" type="xs:boolean"/>
    <xs:attribute name="fieldId" type="integerWithHex"/>
    <xs:attribute name="countArg" type="xs:string" />
    <xs:attribute name="isNullable" type="xs:boolean"/>
  </xs:complexType>
  <xs:complexType name="clusterRef">
    <xs:attribute name="code" type="xs:string"/>
  </xs:complexType>
  <xs:complexType name="item">
    <xs:attribute name="introducedIn" type="zclSpecVersion"/>
    <xs:attribute name="name" use="required" type="xs:string"/>
    <xs:attribute name="type" type="xs:string"/>
    <xs:attribute name="value" type="xs:string"/>
    <xs:attribute name="array" type="xs:boolean"/>
    <xs:attribute name="enum" type="xs:boolean"/>
    <xs:attribute name="fieldId" type="integerWithHex"/>
    <xs:attribute name="min" type="integerWithHex"/>
    <xs:attribute name="max" type="integerWithHex"/>
    <xs:attribute name="length" type="integerWithHex"/>
    <xs:attribute name="default" type="xs:string"/>
    <xs:attribute name="isNullable" type="xs:boolean"/>
    <xs:attribute name="optional" type="xs:boolean" default="false"/>
  </xs:complexType>
  <xs:complexType name="featureBit" mixed="true">
    <xs:attribute name="tag" use="required" type="xs:string"/>
    <xs:attribute name="bit" use="required" type="integerWithHex"/>
  </xs:complexType>
  <xs:element name="cli">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="group"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="command"/>
      </xs:sequence>
    </xs:complexType>
  </xs:element>
  <xs:element name="defaultAccess">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" name="access" type="access"/>
      </xs:sequence>
      <xs:attribute name="type" type="xs:string"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="operation">
    <xs:complexType>
      <xs:attribute name="type" type="xs:string"/>
      <xs:attribute name="description" type="xs:string"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="modifier">
    <xs:complexType>
      <xs:attribute name="type" type="xs:string"/>
      <xs:attribute name="description" type="xs:string"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="role">
    <xs:complexType>
      <xs:attribute name="type" type="xs:string"/>
      <xs:attribute name="description" type="xs:string"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="privilege" substitutionGroup="role"/>
  <xs:element name="accessControl">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="operation"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="modifier"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="role"/>
      </xs:sequence>
    </xs:complexType>
  </xs:element>
  <xs:element name="group">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="description"/>
      </xs:sequence>
      <xs:attribute name="id" use="required" type="uIntegerWithHex"/>
      <xs:attribute name="name" use="required"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="zap" substitutionGroup="configurator"/>
  <xs:element name="configurator">
    <xs:complexType>
      <xs:sequence>
        <xs:choice>
          <xs:element ref="callback"/>
          <xs:element minOccurs="0" maxOccurs="unbounded" ref="deviceType"/>
        </xs:choice>
        <xs:choice minOccurs="0" maxOccurs="unbounded">
          <xs:element ref="atomic"/>
          <xs:element ref="bitmap"/>
          <xs:element ref="cluster"/>
          <xs:element ref="clusterExtension"/>
          <xs:element ref="enum"/>
          <xs:element ref="struct"/>
          <xs:element ref="domain"/>
          <xs:element ref="global"/>
          <xs:element ref="tag"/>
          <xs:element ref="accessControl"/>
          <xs:element ref="defaultAccess"/>
        </xs:choice>
      </xs:sequence>
    </xs:complexType>

    <xs:unique name="structNameKey">
      <xs:selector xpath="./struct|enum" />
      <xs:field xpath="@name" />
    </xs:unique>
  </xs:element>
  <xs:element name="deviceType">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="name"/>
        <xs:element ref="domain"/>
        <xs:element ref="typeName"/>
        <xs:element ref="profileId"/>
        <xs:element ref="deviceId"/>
        <xs:element minOccurs="0" ref="channels"/>
        <xs:element ref="clusters"/>
      </xs:sequence>
    </xs:complexType>
  </xs:element>
  <xs:element name="typeName" type="xs:string"/>
  <xs:element name="profileId">
    <xs:complexType>
      <xs:simpleContent>
        <xs:extension base="xs:string">
          <xs:attribute name="editable" use="required" type="xs:boolean"/>
        </xs:extension>
      </xs:simpleContent>
    </xs:complexType>
  </xs:element>
  <xs:element name="deviceId">
    <xs:complexType>
      <xs:simpleContent>
        <xs:extension base="xs:string">
          <xs:attribute name="editable" use="required" type="xs:boolean"/>
        </xs:extension>
      </xs:simpleContent>
    </xs:complexType>
  </xs:element>
  <xs:element name="channels">
    <xs:complexType>
      <xs:sequence>
        <xs:element maxOccurs="unbounded" ref="channel"/>
      </xs:sequence>
      <xs:attribute name="editable" use="required" type="xs:boolean"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="channel">
    <xs:simpleType>
      <xs:restriction base="xs:integer">
        <xs:minInclusive value="11"/>
        <xs:maxInclusive value="26"/>
        <xs:whiteSpace value="collapse"/>
      </xs:restriction>
    </xs:simpleType>
  </xs:element>
  <xs:element name="clusters">
    <xs:complexType>
      <xs:sequence>
        <xs:element maxOccurs="unbounded" ref="include"/>
      </xs:sequence>
      <xs:attribute name="lockOthers" use="required" type="xs:boolean"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="include">
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:element ref="requireAttribute"/>
        <xs:element ref="requireCommand"/>
      </xs:choice>
      <xs:attribute name="client" use="required" type="xs:boolean"/>
      <xs:attribute name="clientLocked" use="required" type="xs:boolean"/>
      <xs:attribute name="cluster"/>
      <xs:attribute name="server" use="required" type="xs:boolean"/>
      <xs:attribute name="serverLocked" use="required" type="xs:boolean"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="requireAttribute" type="zclAttributeDefine"/>
  <xs:element name="requireCommand" type="zclCommandName"/>
  <xs:element name="global">
    <xs:complexType>
      <xs:sequence>
        <xs:element maxOccurs="unbounded" ref="command"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="attribute"/>
      </xs:sequence>
    </xs:complexType>
  </xs:element>
  <xs:element name="atomic">
    <xs:complexType>
      <xs:sequence>
        <xs:element maxOccurs="unbounded" ref="type"/>
      </xs:sequence>
    </xs:complexType>
    <xs:unique name="UniqueTypeId">
      <xs:selector xpath="type"/>
      <xs:field xpath="@id"/>
    </xs:unique>
  </xs:element>
  <xs:element name="type">
    <xs:complexType>
      <xs:attribute name="id" use="required" type="uIntegerWithHex"/>
      <xs:attribute name="name" use="required" type="xs:string"/>
      <xs:attribute name="description" use="required" type="xs:string"/>
      <xs:attribute name="size" type="integerWithHex"/>
      <xs:attribute name="discrete" type="xs:boolean"/>
      <xs:attribute name="signed" type="xs:boolean"/>
      <xs:attribute name="string" type="xs:boolean"/>
      <xs:attribute name="char" type="xs:boolean"/>
      <xs:attribute name="long" type="xs:boolean"/>
      <xs:attribute name="analog" type="xs:boolean"/>
      <xs:attribute name="composite" type="xs:boolean"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="bitmap">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" name="cluster">
          <xs:complexType>
            <xs:attribute name="code" type="integerWithHex"/>
          </xs:complexType>
        </xs:element>
        <xs:element maxOccurs="unbounded" ref="field"/>
      </xs:sequence>
      <xs:attribute name="name" use="required" type="xs:string"/>
      <xs:attribute name="type" use="required" type="xs:string"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="field">
    <xs:complexType>
      <xs:attribute name="mask" use="required" type="xs:string"/>
      <xs:attribute name="name" use="required" type="xs:string"/>
      <xs:attribute name="introducedIn" type="zclSpecVersion"/>
      <xs:attribute name="fieldId" type="integerWithHex"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="globalAttribute">
    <xs:complexType mixed="true">
      <xs:choice>
        <xs:element minOccurs="0" maxOccurs="unbounded" name="featureBit" type="featureBit"/>
      </xs:choice>
      <xs:attribute name="side" use="required" type="zclSideWithEither"/>
      <xs:attribute name="code" use="required" type="xs:string"/>
      <xs:attribute name="value" use="required" type="xs:string"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="optionalConform">
    <xs:complexType>
      <xs:attribute name="choice" type="xs:string"/>
      <xs:attribute name="more" type="xs:boolean"/>
      <xs:attribute name="min" type="integerWithHex"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="cluster">
    <xs:complexType>
      <xs:choice maxOccurs="unbounded">
        <xs:element ref="name"/>
        <xs:element ref="domain"/>
        <xs:element ref="description"/>
        <xs:element ref="code"/>
        <xs:element ref="define"/>
        <xs:element ref="client"/>
        <xs:element ref="server"/>
        <xs:element minOccurs="0" ref="generateCmdHandlers"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" name="tag" type="tag"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="globalAttribute"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="attribute"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="command"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="event"/>
        <xs:element minOccurs="0" name="features">
          <xs:complexType>
          <xs:sequence>
            <xs:element maxOccurs="unbounded" name="feature">
              <xs:complexType>
                <xs:choice>
                  <xs:element ref="optionalConform"/>
                </xs:choice>
                <xs:attribute name="bit" use="required" type="integerWithHex" />
                <xs:attribute name="code" use="required" type="xs:string" />
                <xs:attribute name="name" type="xs:string" />
                <xs:attribute name="summary" type="xs:string" />
              </xs:complexType>
            </xs:element>
          </xs:sequence>
          </xs:complexType>
        </xs:element>
      </xs:choice>
      <xs:attribute name="introducedIn" type="xs:string"/>
      <xs:attribute name="manufacturerCode" type="zclCode"/>
      <xs:attribute name="singleton" type="xs:boolean"/>
      <xs:attribute name="apiMaturity" type="zclApiMaturity" />
    </xs:complexType>
  </xs:element>
  <xs:element name="code" type="zclCode"/>
  <xs:element name="define" type="xs:string"/>
  <xs:element name="client">
    <xs:complexType>
      <xs:simpleContent>
        <xs:extension base="xs:boolean">
          <xs:attribute name="init" use="required" type="xs:boolean"/>
          <xs:attribute name="tick" use="required" type="xs:boolean"/>
        </xs:extension>
      </xs:simpleContent>
    </xs:complexType>
  </xs:element>
  <xs:element name="server">
    <xs:complexType>
      <xs:simpleContent>
        <xs:extension base="xs:boolean">
          <xs:attribute name="init" use="required" type="xs:boolean"/>
          <xs:attribute name="tick" use="required" type="xs:boolean"/>
          <xs:attribute name="tickFrequency" type="xs:string"/>
        </xs:extension>
      </xs:simpleContent>
    </xs:complexType>
  </xs:element>
  <xs:element name="generateCmdHandlers" type="xs:boolean"/>
  <xs:element name="clusterExtension">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="attribute"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="command"/>
      </xs:sequence>
      <xs:attribute name="code" use="required" type="xs:string"/>
      <xs:attribute name="introducedIn" type="zclSpecVersion"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="enum">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" name="cluster" type="clusterRef"/>
        <xs:element maxOccurs="unbounded" name="item" type="item"/>
      </xs:sequence>
      <xs:attribute name="description"/>
      <xs:attribute name="name" use="required" type="xs:string"/>
      <xs:attribute name="type" use="required" type="xs:string"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="struct">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" name="cluster" type="clusterRef"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" name="item" type="item"/>
      </xs:sequence>
      <xs:attribute name="length" type="integerWithHex"/>
      <xs:attribute name="name" use="required" type="xs:string"/>
      <xs:attribute name="apiMaturity" type="zclApiMaturity" />
    </xs:complexType>
  </xs:element>
  <xs:element name="callback">
    <xs:complexType>
      <xs:sequence>
        <xs:element maxOccurs="unbounded" ref="function"/>
      </xs:sequence>
      <xs:attribute name="postfix" type="xs:string"/>
      <xs:attribute name="prefix" type="xs:string"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="function">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" ref="description"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" name="arg" type="arg"/>
        <xs:element minOccurs="0" ref="codeForStub"/>
      </xs:sequence>
      <xs:attribute name="category" type="xs:string"/>
      <xs:attribute name="cluster"/>
      <xs:attribute name="consumed" type="xs:boolean"/>
      <xs:attribute name="id" use="required" type="uIntegerWithHex"/>
      <xs:attribute name="name" use="required"/>
      <xs:attribute name="platformType" type="xs:string"/>
      <xs:attribute name="returnType" use="required" type="xs:string"/>
      <xs:attribute name="side" type="zclSide"/>
      <xs:attribute name="stackMacro"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="codeForStub" type="xs:string"/>
  <xs:element name="name" type="xs:string"/>
  <xs:element name="tag" type="tag"/>
  <xs:element name="domain">
    <xs:complexType>
      <!-- TODO: Remove the string extension once all XML files properly use
      name attribute instead of putting the name in the content -->
      <xs:complexContent>
        <xs:extension base="xs:string" >
          <xs:sequence>
            <xs:element minOccurs="0" ref="older"/>
          </xs:sequence>
          <xs:attribute name="dependsOn" type="zclSpecVersion"/>
          <xs:attribute name="name" type="xs:string" />
          <xs:attribute name="spec" type="zclSpecVersion"/>
          <xs:attribute name="certifiable" type="xs:boolean"/>
        </xs:extension>
      </xs:complexContent>
    </xs:complexType>
  </xs:element>
  <xs:element name="older">
    <xs:complexType>
      <xs:attribute name="dependsOn" type="xs:string"/>
      <xs:attribute name="spec" use="required" type="xs:string"/>
      <xs:attribute name="certifiable" type="xs:boolean"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="event">
    <xs:complexType>
      <xs:choice maxOccurs="unbounded">
        <xs:element ref="description" />
        <xs:element minOccurs="0" maxOccurs="unbounded" name="access" type="access"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" name="field" type="eventField"/>
      </xs:choice>
      <xs:attribute name="code" type="xs:string"/>
      <xs:attribute name="name" type="xs:string"/>
      <xs:attribute name="side" use="required" type="zclSide"/>
      <xs:attribute name="priority" type="xs:string"/>
      <xs:attribute name="optional" type="xs:boolean" default="false"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="command">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="description"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" name="access" type="access"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" name="arg" type="arg"/>
      </xs:sequence>
      <xs:attribute name="cli"/>
      <xs:attribute name="cliFunctionName" type="xs:string"/>
      <xs:attribute name="code" type="xs:string"/>
      <xs:attribute name="disableDefaultResponse" type="xs:boolean"/>
      <xs:attribute name="functionName" type="xs:string"/>
      <xs:attribute name="group" type="xs:string"/>
      <xs:attribute name="introducedIn" type="zclSpecVersion"/>
      <xs:attribute name="noDefaultImplementation" type="xs:boolean"/>
      <xs:attribute name="manufacturerCode" type="xs:string"/>
      <xs:attribute name="name" type="xs:string"/>
      <xs:attribute name="optional" type="xs:boolean"/>
      <xs:attribute name="source" type="xs:string"/>
      <xs:attribute name="restriction" type="xs:string"/>
      <xs:attribute name="response" type="xs:string"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="attribute">
    <xs:complexType mixed="true">
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" name="description"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" name="access" type="access"/>
      </xs:sequence>
      <xs:attribute name="code" use="required" type="zclCode"/>
      <xs:attribute name="default"/>
      <xs:attribute name="define" use="required" type="zclAttributeDefine"/>
      <xs:attribute name="introducedIn" type="zclSpecVersion"/>
      <xs:attribute name="length" type="integerWithHex"/>
      <xs:attribute name="manufacturerCode" type="zclCode"/>
      <xs:attribute name="max" type="xs:anySimpleType"/>
      <xs:attribute name="min" type="xs:anySimpleType"/>
      <xs:attribute name="reportMaxInterval" type="xs:anySimpleType"/>
      <xs:attribute name="reportMinInterval" type="xs:anySimpleType"/>
      <xs:attribute name="reportableChange" type="xs:anySimpleType"/>
      <xs:attribute name="optional" type="xs:boolean" default="false"/>
      <xs:attribute name="side" use="required" type="zclSide"/>
      <xs:attribute name="type" use="required" type="xs:string"/>
      <xs:attribute name="readable" type="xs:boolean"/>
      <xs:attribute name="writable" type="xs:boolean"/>
      <xs:attribute name="reportable" type="xs:boolean"/>
      <xs:attribute name="array" type="xs:boolean"/>
      <xs:attribute name="isNullable" type="xs:boolean"/>
      <xs:attribute name="entryType" type="xs:string" />
    </xs:complexType>
  </xs:element>
  <xs:element name="description">
    <xs:complexType mixed="true">
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" name="arg" type="arg"/>
      </xs:sequence>
    </xs:complexType>
  </xs:element>
  <xs:simpleType name="zclAttributeDefine">
    <xs:restriction base="xs:string"/>
  </xs:simpleType>
  <xs:simpleType name="zclCommandName">
    <xs:restriction base="xs:string"/>
  </xs:simpleType>
  <xs:simpleType name="zclSpecVersion">
    <xs:restriction base="xs:string"/>
  </xs:simpleType>
  <xs:simpleType name="zclCode">
    <xs:restriction base="xs:string"/>
  </xs:simpleType>
  <xs:simpleType name="zclSide">
    <xs:restriction base="xs:string">
      <xs:enumeration value="client"/>
      <xs:enumeration value="server"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="zclSideWithEither">
    <xs:restriction base="xs:string">
      <xs:enumeration value="client"/>
      <xs:enumeration value="server"/>
      <xs:enumeration value="either"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="zclApiMaturity">
    <xs:restriction base="xs:string">
      <xs:enumeration value="stable"/>
      <xs:enumeration value="provisional"/>
      <xs:enumeration value="internal"/>
      <xs:enumeration value="deprecated"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:element name="mapping">
    <xs:complexType>
      <xs:attribute name="code" type="xs:string"/>
      <xs:attribute name="translation" type="xs:string"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="map">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mapping"/>
      </xs:sequence>
    </xs:complexType>
  </xs:element>
</xs:schema>