async def async_get_total_bytes_received(self) -> Optional[int]:
    'Get total bytes received.'
    self.traffic_times_polled += 1
    return self.traffic_data[BYTES_RECEIVED]
Get total bytes received.
async def async_get_total_bytes_received(self) -> Optional[int]:
    
    self.traffic_times_polled += 1
    return self.traffic_data[BYTES_RECEIVED]