code: def _build_ln(n_in, name):
      """ """
      return nn.LayerNorm(
          normalized_shape=n_in,
          weight_attr=paddle.ParamAttr(
              name="%s_layer_norm_scale" % name
              if name is not None
              else None,
              initializer=nn.initializer.Constant(1.0),
          ),
          bias_attr=paddle.ParamAttr(
              name="%s_layer_norm_bias" % name
              if name is not None
              else None,
              initializer=nn.initializer.Constant(0.0),
          ),
      )
  
imports: import logging
  import re
  import time
  import paddle
  from paddle import nn
  from paddle.nn import functional
label_desc: Use image node_id 2 for calling a global function with example usage: _build_ln(n_in, name) and returns: nn