1. DomName('ConsoleBase.markTimeline')
  2. DocsEditable()
  3. Experimental()
void markTimeline(String title)

Source 

@DomName('ConsoleBase.markTimeline')
@DocsEditable()
@Experimental() // untriaged
void markTimeline(String title) => _blink.BlinkConsoleBase.instance.markTimeline_Callback_1_(unwrap_jso(this), title);