docstr: This tests if the conversion of a slow model to its BetterTransformer version using fastpath
  has been successful.
docstr_tok: ["This","tests","if","the","conversion","of","a","slow","model","to","its","BetterTransformer","version","using","fastpath","has","been","successful","."]
code: def test_conversion(self, model_type: str):
      r"""
      This tests if the conversion of a slow model to its BetterTransformer version using fastpath
      has been successful.
      """
      model_ids = (
          MODELS_DICT[model_type]
          if isinstance(MODELS_DICT[model_type], tuple)
          else (MODELS_DICT[model_type],)
      )
      for model_id in model_ids:
          hf_random_model = AutoModel.from_pretrained(model_id)
          converted_model = BetterTransformer.transform(hf_random_model)
  
          self.assertTrue(
              hasattr(converted_model, "use_bettertransformer"),
              f"The model {converted_model.__class__.__name__} is not a fast model.",
          )
  
          self.assertTrue(
              isinstance(converted_model, hf_random_model.__class__)
          )
          self.assertTrue(hasattr(converted_model, "generate"))
  
file_path: optimum/tests/bettertransformer/test_common.py
imports: import tempfile
  import unittest
  from unittest.mock import patch
  import transformers
  from parameterized import parameterized
  from testing_utils import MODELS_DICT
  from transformers import AutoModel
  from optimum.bettertransformer import BetterTransformer, BetterTransformerManager
  from optimum.pipelines import pipeline
  from optimum.utils.testing_utils import grid_parameters
label_desc: Use image node_id 4 for calling the BetterTransformerIntegrationTests obj's underlying member method code with example usage: obj.test_conversion(model_type) without return types