let $xsd := 

  <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"

   elementFormDefault="qualified">

   <xs:element name="root">

      <xs:complexType mixed="false">

         <xs:choice minOccurs="1" maxOccurs="unbounded">

            <xs:element name="leaf"><xs:complexType><xs:attribute name="value" type="xs:string"></xs:attribute></xs:complexType></xs:element>

         </xs:choice>

      </xs:complexType>

   </xs:element>

</xs:schema>

let $xml :=

  <root><leaf value="test"></leaf></root>

let $xsd-path := 'xsd-test.xsd'

let $xsd-file := file:write($xsd-path, $xsd)

return validate:xsd-info($xml, $xsd-path)