#import // https://dom.spec.whatwg.org/#domimplementation [Exposed=Window] interface DOMImplementation { // FIXME: This should return XMLDocument instead of Document. [NewObject] Document createDocument(DOMString? namespace, [LegacyNullToEmptyString] DOMString qualifiedName, optional DocumentType? doctype = null); [NewObject] Document createHTMLDocument(optional DOMString title); [NewObject] DocumentType createDocumentType(DOMString qualifiedName, DOMString publicId, DOMString systemId); boolean hasFeature(); };