code: def __call__(self, x, train=True):
      return tf.contrib.layers.batch_norm(
          x,
          decay=self.momentum,
          updates_collections=None,
          epsilon=self.epsilon,
          scale=True,
          is_training=train,
      )
  
imports: import tensorflow
label_desc: Use image node_id 2 for calling the batch_norm obj's underlying member method code with example usage: obj.__call__(x, train) and returns: tf