confusion about usage

[SoulProficiency]

i try pyav with ascend device(HUAWEI altas NPU) and ascend provides us a example of pulling stream and hard decode.

#-----
video = av.open(self._stream_name)
stream = [s for s in video.streams if s.type == 'video']
for packet in video.demux([stream[0]]):
in_frame_np = np.frombuffer(packet.to_bytes(), np.byte)
size = in_frame_np.size
#-----

this demo will run success with av==11.0.0 but will fail with 12.3.0 and python tell me "AttributeError: 'av.packet.Packet' object has no attribute 'to_bytes'"

how we can do it with new version?