class_docstr: Mock environment for testing.
class_docstr_tok: ["Mock","environment","for","testing","."]
code: def __init__(self, max_steps=10):
      self._observation = 0
      self.max_steps = max_steps
      self.game_over = False
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import os
  import shutil
  from absl import flags
  from dopamine.agents.dqn import dqn_agent
  from dopamine.agents.implicit_quantile import implicit_quantile_agent
  from dopamine.agents.rainbow import rainbow_agent
  from dopamine.discrete_domains import checkpointer
  from dopamine.discrete_domains import logger
  from dopamine.discrete_domains import run_experiment
  from dopamine.metrics import collector_dispatcher
  from dopamine.metrics import statistics_instance
  import gin.tf
  import mock
  import tensorflow
label_desc: Use image node_id 1 to create a new MockEnvironment object from inherited base classes: object with example: obj = MockEnvironment(max_steps)