5.38 http://schemas.microsoft.com/office/word/2020/oembed Schema

 <xsd:schema targetNamespace="http://schemas.microsoft.com/office/word/2020/oembed" xmlns:xsd="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified" xmlns="http://schemas.microsoft.com/office/word/2020/oembed">
   <xsd:complexType name="CT_OEmbed">
     <xsd:attribute name="oEmbedUrl" type="xsd:string" use="required"/>
     <xsd:attribute name="mediaType" type="xsd:string" use="required"/>
     <xsd:attribute name="picLocksAutoForOEmbed" type="xsd:boolean" use="optional" default="false"/>
   </xsd:complexType>
   <xsd:element name="oembed" type="CT_OEmbed"/>
 </xsd:schema>