code: def test_imports_no_peft(self):
      with patch.dict(sys.modules, {"peft": None}):
          from trl import (  # noqa
              AutoModelForCausalLMWithValueHead,
              AutoModelForSeq2SeqLMWithValueHead,
              PPOConfig,
              PPOTrainer,
              PreTrainedModelWrapper,
          )
  
file_path: trl/tests/test_no_peft.py
imports: import sys
  import unittest
  from unittest.mock import patch
  import torch
  from transformers import AutoModelForCausalLM, AutoTokenizer
  from .testing_utils import is_peft_available, require_peft
label_desc: Use image node_id 3 for calling the TestPeftDependancy obj's underlying member method code with example usage: obj.test_imports_no_peft() without return types