1. @DomName('DOMImplementation.createDocument')
  2. @DocsEditable()
XmlDocument createDocument(String namespaceURI, String qualifiedName, _DocumentType doctype)

Source

@DomName('DOMImplementation.createDocument')
@DocsEditable()
XmlDocument createDocument(
    String namespaceURI, String qualifiedName, _DocumentType doctype) native;