def get_window_size(self, window_handle='<STR_LIT>'):
return self._execute(Command.GET_WINDOW_SIZE,<EOL>{'<STR_LIT>': window_handle})<EOL>
Gets the width and height of the current window.

        Support:
            Web(WebView)

        Args:
            window_handle(str): Identifier of window_handle,
                default to 'current'.

        Returns:
            A dict contains width and height