new_contents: # Copyright 2019 DeepMind Technologies Ltd. All rights reserved.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  """Example use of computing exploitability of a uniform policy."""
  
  from absl import app
  from absl import flags
  
  from open_spiel.python.algorithms import exploitability
  from open_spiel.python.policy import UniformRandomPolicy
  import pyspiel
  
  FLAGS = flags.FLAGS
  
  flags.DEFINE_string("game", "kuhn_poker", "Name of the game")
  
  
  def main(_):
    game = pyspiel.load_game(FLAGS.game)
    expl = exploitability.exploitability(game, UniformRandomPolicy(game))
    print("Exploitability: {}".format(expl))
  
  
  if __name__ == "__main__":
    app.run(main)
  
subject: Add a simple example of computing exploitability of uniform policy.