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