class_docstr: Class to abstract the normalization that is used.
code: def __call__(self):
      norm_layer = (
          self.norm() if not self.params else self.norm(**self.params)
      )
      return norm_layer
  
imports: import tensorflow
label_desc: Use image node_id 2 for calling the NormType obj's underlying member method code with example usage: obj.__call__() and returns: norm_layer