1. @DomName('ShadowRoot.elementsFromPoint')
  2. @DocsEditable()
  3. @Experimental()
List<Element> elementsFromPoint(int x, int y)

Source 

@DomName('ShadowRoot.elementsFromPoint')
@DocsEditable()
@Experimental() // untriaged
List<Element> elementsFromPoint(int x, int y) =>
    (_blink.BlinkShadowRoot.instance
        .elementsFromPoint_Callback_2_(this, x, y));