code: def original_layer_class():
      return TransformerFFN
  
file_path: parallelformers/parallelformers/policies/xlm.py
imports: from transformers.models.xlm.modeling_xlm import MultiHeadAttention, TransformerFFN
  from parallelformers.policies.base import Layer, Policy
  from parallelformers.utils.dist_utils import AllReduceLinear
label_desc: Use image node_id 3 for calling the XLMMLPPolicy obj's underlying member method code with example usage: obj.original_layer_class() and returns: TransformerFFN