code: def config_sanity_check(self):
      pass
  
imports: import warnings
  from functools import partial
  from typing import Callable, Dict, List
  import torch.nn
  from torch import Tensor, nn
  from colossalai.shardformer.layer import FusedLayerNorm, LayerNorm, Linear1D_Col, Linear1D_Row, VocabParallelEmbedding1D
  from .._utils import getattr_
  from ..modeling.jit import get_jit_fused_dropout_add_func
  from ..modeling.opt import OPTPipelineForwards, get_jit_fused_opt_decoder_layer_forward, get_opt_flash_attention_forward
  from .base_policy import ModulePolicyDescription, Policy, SubModuleReplacementDescription
label_desc: Use image node_id 2 for calling the OPTPolicy obj's underlying member method code with example usage: obj.config_sanity_check() without return types