1. DomName('DOMImplementation.createHTMLDocument')
  2. DocsEditable()
HtmlDocument createHtmlDocument(String title)

Source 

@DomName('DOMImplementation.createHTMLDocument')
@DocsEditable()
HtmlDocument createHtmlDocument(String title) => _blink.BlinkDOMImplementation.instance.createHTMLDocument_Callback_1_(this, title);