code: def original_layer_class():
      return RobertaLayer
  
file_path: parallelformers/parallelformers/policies/roberta.py
imports: from transformers.models.roberta.modeling_roberta import RobertaLayer
  from parallelformers.policies.base import Layer, Policy
  from parallelformers.transformers.modeling_roberta import RobertaEmbeddings_
  from parallelformers.utils.dist_utils import AllReduceLinear
label_desc: Use image node_id 7 for calling the RobertaPolicy obj's underlying member method code with example usage: obj.original_layer_class() and returns: RobertaLayer