class_docstr: Nuclear 2-norm regularization.
code: def compute_norm(self, x):
      return tf.reduce_sum(tf.norm(x, ord=2, axis=1) ** 3)
  
imports: import abc
  import tensorflow
label_desc: Use image node_id 1 for calling the N2 obj's underlying member method code with example usage: obj.compute_norm(x) and returns: tf