code: def find_stream(cls, fileobj, max_bytes):
          
  
          r = BitReader(fileobj)
          stream = cls(r)
          if stream.sync(max_bytes):
              stream.offset = (r.get_position() - 12) // 8
              return stream
docs: Returns a possibly valid _ADTSStream or None.
  
          Args:
              max_bytes (int): maximum bytes to read