def move_mouse(x_delta, y_delta)
      send_request RequestMessage.new(mouse_event_message: MouseEvent.new(x_delta: x_delta, y_delta: y_delta))
    end
def move_mouse(x_delta, y_delta)
      send_request RequestMessage.new(mouse_event_message: MouseEvent.new(x_delta: x_delta, y_delta: y_delta))
    end
Move the mouse relative to its current position