code: def test_training_gradient_checkpointing(self):
      pass
  
imports: import unittest
  from typing import Dict, List, Tuple
  from transformers import FNetConfig, is_torch_available
  from transformers.models.auto import get_values
  from transformers.testing_utils import require_tokenizers, require_torch, slow, torch_device
  from ...test_configuration_common import ConfigTester
  from ...test_modeling_common import ModelTesterMixin, floats_tensor, ids_tensor
  from ...test_pipeline_mixin import PipelineTesterMixin
label_desc: Use image node_id 4 for calling the FNetModelTest obj's underlying member method code with example usage: obj.test_training_gradient_checkpointing() without return types