code: def read_rle_bit_packed_hybrid(file_obj, width, length=None):
      
      debug_logging = logger.isEnabledFor(logging.DEBUG)
      io_obj = file_obj
      if length is None:
          length = read_plain_int32(file_obj, 1)[0]
          raw_bytes = file_obj.read(length)
          if raw_bytes == b'':
              return None
          io_obj = io.BytesIO(raw_bytes)
      res = []
      while io_obj.tell() < length:
          header = read_unsigned_var_int(io_obj)
          if header & 1 == 0:
              res += read_rle(io_obj, header, width, debug_logging)
          else:
              res += read_bitpacked(io_obj, header, width, debug_logging)
      return res
docs: Read values from `fo` using the rel/bit-packed hybrid encoding.
  
      If length is not specified, then a 32-bit int is read first to grab the
      length of the encoded data.