code: def test_create_load_model_response(self):
      msg = codec.create_load_model_response(200, "model_loaded")
  
      assert (
          msg
          == b"\x00\x00\x00\xc8\x00\x00\x00\x0cmodel_loaded\xff\xff\xff\xff"
      )
  
file_path: serve/ts/tests/unit_tests/test_otf_codec_protocol.py
imports: import struct
  from builtins import bytes
  from collections import namedtuple
  import pytest
  import ts.protocol.otf_message_handler
label_desc: Use image node_id 7 for calling the TestOtfCodecHandler obj's underlying member method code with example usage: obj.test_create_load_model_response() without return types