code: def norm_cdf(x):
      return (1.0 + math.erf(x / math.sqrt(2.0))) / 2.0
  
file_path: gluon-nlp/src/gluonnlp/initializer.py
imports: import warnings
  import math
  import mxnet
  from mxnet.initializer import Initializer
label_desc: Use image node_id 1 for calling a global function with example usage: norm_cdf(x) and returns: unknown