code: def test_args_convert(self):
      # If no defaults are changed, `to_kwargs` returns an empty dict.
      converted_args = _convert_nargs_to_dict(
          MockLaunchConfig.success_training_script_args
      )
      assert isinstance(converted_args["model_name_or_path"], str)
      assert isinstance(converted_args["do_train"], bool)
      assert isinstance(converted_args["epochs"], int)
      assert isinstance(converted_args["learning_rate"], float)
      assert isinstance(converted_args["max_steps"], float)
  
      with pytest.raises(ValueError):
          _convert_nargs_to_dict(
              MockLaunchConfig.fail_training_script_args
          )
  
file_path: accelerate/tests/test_sagemaker.py
imports: import unittest
  from dataclasses import dataclass
  import pytest
  from accelerate.commands.config.config_args import SageMakerConfig
  from accelerate.utils import ComputeEnvironment
  from accelerate.utils.launch import _convert_nargs_to_dict
label_desc: Use image node_id 1 for calling the SageMakerLaunch obj's underlying member method code with example usage: obj.test_args_convert() without return types