code: def _set_gradient_checkpointing(self, module, value=False):
      if isinstance(module, (LDMBertEncoder,)):
          module.gradient_checkpointing = value
  
imports: import inspect
  from typing import List, Optional, Tuple, Union
  import torch
  import torch.nn
  import torch.utils.checkpoint
  from transformers import PretrainedConfig, PreTrainedModel, PreTrainedTokenizer
  from transformers.activations import ACT2FN
  from transformers.modeling_outputs import BaseModelOutput
  from transformers.utils import logging
  from ...models import AutoencoderKL, UNet2DConditionModel, UNet2DModel, VQModel
  from ...schedulers import DDIMScheduler, LMSDiscreteScheduler, PNDMScheduler
  from ...utils.torch_utils import randn_tensor
  from ..pipeline_utils import DiffusionPipeline, ImagePipelineOutput
label_desc: Use image node_id 2 for calling the LDMBertPreTrainedModel obj's underlying member method code with example usage: obj._set_gradient_checkpointing(module, value) without return types