code: function click() {
      const clickEvent = input.ownerDocument.createEvent('HTMLEvents');
      clickEvent.initEvent('click', true, true);
      const labelElementImpl = domSymbolTree.parent(idlUtils.implForWrapper(input));
      const dispatchResult = input.dispatchEvent(clickEvent);
      input._click && input._click(clickEvent);
      return dispatchResult;
    }
docs: First event we fire is click event