<?xml version="1.0" encoding="UTF-8"?>
<xs:schema targetNamespace="urn:ietf:params:xml:ns:im-iscomposing"
   elementFormDefault="qualified"
   attributeFormDefault="unqualified"
   xmlns:xs="http://www.w3.org/2001/XMLSchema"
   xmlns:tns="urn:ietf:params:xml:ns:im-iscomposing">

   <xs:element name="isComposing">
     <xs:complexType>
       <xs:sequence>
         <xs:element name="state" type="xs:string"/>
         <xs:element name="lastactive" type="xs:dateTime" minOccurs="0"/>
         <xs:element name="contenttype" type="xs:string" minOccurs="0"/>
         <xs:element name="refresh" type="xs:positiveInteger" minOccurs="0"/>
         <xs:any namespace="##other" processContents="lax" minOccurs="0" maxOccurs="unbounded"/>
       </xs:sequence>
     </xs:complexType>
   </xs:element>

</xs:schema>