code: def add_ops(self, net):
      if self.use_layer_norm_op:
          self.add_ops_with_layer_norm_op(net)
      else:
          self.add_ops_without_layer_norm_op(net)
  
file_path: pytorch/caffe2/python/layers/layer_normalization.py
imports: from caffe2.python import schema
  from caffe2.python.layers.layers import ModelLayer
  import numpy
label_desc: Use image node_id 4 for calling the LayerNormalization obj's underlying member method code with example usage: obj.add_ops(net) without return types