class_docstr: A mock univariate distribution with a given batch shape.
class_docstr_tok: ["A","mock","univariate","distribution","with","a","given","batch","shape","."]
code: def entropy(self):
      return self._entropy
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from absl.testing import parameterized
  import numpy
  from six.moves import xrange
  import tensorflow.compat.v1
  import tensorflow_probability
  import tree
  from trfl import policy_gradient_ops
label_desc: Use image node_id 3 for calling the MockDistribution obj's underlying member method code with example usage: obj.entropy() and returns: self