1. DomName('XSLTProcessor.importStylesheet')
  2. DocsEditable()
void importStylesheet(Node stylesheet)

Source 

@DomName('XSLTProcessor.importStylesheet')
@DocsEditable()
void importStylesheet(Node stylesheet) => _blink.BlinkXSLTProcessor.instance.importStylesheet_Callback_1_(unwrap_jso(this), unwrap_jso(stylesheet));