code: def postprocess(self):
      return self.model
  
imports: import warnings
  from functools import partial
  from typing import Callable, Dict, List, Tuple
  import numpy
  import torch.nn
  from torch import Tensor
  import colossalai.shardformer.layer
  from ..modeling.jit import get_jit_fused_dropout_add_func
  from ..modeling.whisper import WhisperPipelineForwards, get_jit_fused_whisper_decoder_layer_forward, get_jit_fused_whisper_encoder_layer_forward, get_whisper_flash_attention_forward
  from .base_policy import ModulePolicyDescription, Policy, SubModuleReplacementDescription
label_desc: Use image node_id 6 for calling the WhisperPolicy obj's underlying member method code with example usage: obj.postprocess() and returns: self