code: def test_handler(tmp_path, add_paths, compile, mocker):
      try:
          from handler import GptHandler
  
          handler = GptHandler()
          ctx = MockContext(
              model_pt_file=None,
              model_dir=GPT_PATH.as_posix(),
          )
          model_config_yaml = tmp_path / "model-config.yaml"
          config = YAML_CONFIG.substitute(
              {"nproc": "1", "stream": "true", "compile": compile}
          )
          model_config_yaml.write_text(config)
  
          with open(model_config_yaml, "r") as f:
              config = yaml.safe_load(f)
  
          ctx.model_yaml_config = config
          ctx.request_ids = {0: "0"}
  
          torch.manual_seed(42 * 42)
          handler.initialize(ctx)
  
          assert (
              "cuda:0" if torch.cuda.is_available() else "cpu"
          ) == str(handler.device)
  
          send_mock = mocker.MagicMock(
              name="send_intermediate_predict_response"
          )
          with patch(
              "handler.send_intermediate_predict_response", send_mock
          ):
              x = handler.preprocess([{"data": json.dumps(PROMPTS[0])}])
              x = handler.inference(x)
              x = handler.postprocess(x)
  
          result = "".join(c[0][0][0] for c in send_mock.call_args_list)
  
          assert result == EXPECTED_RESULTS[0]
      finally:
          # free memory in case of failed test
          del handler.model
          del handler
          torch.cuda.empty_cache()
          torch.cuda.synchronize()
  
imports: import json
  import shutil
  import sys
  from pathlib import Path
  from string import Template
  from unittest.mock import patch
  import pytest
  import requests
  import test_utils
  import torch
  import yaml
  from model_archiver.model_archiver_config import ModelArchiverConfig
  from ts.torch_handler.unit_tests.test_utils.mock_context import MockContext
label_desc: Use image node_id 3 for calling a global function with example usage: test_handler(tmp_path, add_paths, compile, mocker) without return types