docs: def js_exec(self, method: str, *args: Union[int, str, bool]) -> None:
          """Execute ``method`` in the related node on browser.
  
          Other keyword arguments are passed to ``params`` attribute.
          If this node is not in any document tree (namely, this node does not
          have parent node), the ``method`` is not executed.
          """
          if self.connected:
              self.ws_send(dict(method=method, params=args))