<br/>            Any element in any namespace other than the UBL extension<br/>            namespace is allowed to be the apex element of an extension.<br/>            Only those elements found in the UBL schemas and in the<br/>            trees of schemas importehttp://digitalbusinesscouncil.com.au/wp-content/themes/d52qj37o676g9e8h3m5ih125377/files/resources_subdomain/files/d in this module are validated.<br/>            Any element for which there is no schema declaration in any<br/>            of the trees of schemas passes validation and is not<br/>            treated as a schema constraint violation.<br/>          <br/>