code: def config_sanity_check(self):
      pass
  
file_path: ColossalAI/colossalai/shardformer/policies/blip2.py
imports: import colossalai.shardformer.layer
  from ..modeling.blip2 import forward_fn, get_blip2_flash_attention_forward, get_jit_fused_blip2_QFormer_output_forward, get_jit_fused_blip2_QFormer_self_output_forward
  from ..modeling.jit import get_jit_fused_dropout_add_func
  from .base_policy import ModulePolicyDescription, Policy, SubModuleReplacementDescription
label_desc: Use image node_id 1 for calling the BlipPolicy obj's underlying member method code with example usage: obj.config_sanity_check() without return types