docs: def create_message(
          json_meta, data, data_type=0, version=b'\x00\x01@\x00'):
      """Create message, containing meta and data in df-envelope format.
  
      @json_meta - metadata
      @data - binary data
      @data_type - data type code for binary data
      @version - version of machine header
      @return - message as bytearray
  
      """
      __check_data(data)
      meta = __prepare_meta(json_meta)
      data = __compress(json_meta, data)
      header = __create_machine_header(
          json_meta, data, data_type, version)
  
      return header + meta + data