code: def click(self, x, y):
          '''
          same as adb -s ${SERIALNO} shell input tap x y
          FIXME(ssx): not tested on horizontal screen
          '''
          self.shell('input', 'tap', str(x), str(y)f click(self, x, y):
          '''
          same as adb -s ${SERIALNO} shell input tap x y
          FIXME(ssx): not tested on horizontal screen
          '''
          self.shell('input', 'tap', str(x), str(y))
docs: same as adb -s ${SERIALNO} shell input tap x y
          FIXME(ssx): not tested on horizontal screen