Recording the display of devices running Android 4.4 (API level 19) and higher.

        Args:
            bit_rate:You can increase the bit rate to improve video quality, but doing so results in larger movie files.
            time_limit: Sets the maximum recording time, in seconds, and the maximum value is 180 (3 minutes).

def screenrecord(self, bit_rate: int = 5000000, time_limit: int = 180, filename: _PATH = '/sdcard/demo.mp4') -> None:
        '''Recording the display of devices running Android 4.4 (API level 19) and higher.

        Args:
            bit_rate:You can increase the bit rate to improve video quality, but doing so results in larger movie files.
            time_limit: Sets the maximum recording time, in seconds, and the maximum value is 180 (3 minutes).
        '''
        self._execute('-s', self.device_sn, 'shell',
                      'screenrecord', '--bit-rate', str(bit_rate), '--time-limit', str(time_limit), filename)