class_docstr: A wrapper which can transform an environment from new step API to old and vice-versa.
  
  Old step API refers to step() method returning (observation, reward, done, info)
  New step API refers to step() method returning (observation, reward, terminated, truncated, info)
  (Refer to docs for details on the API change)
  
  Args:
      env (gym.Env): the env to wrap. Can be in old or new API
      apply_step_compatibility (bool): Apply to convert environment to use new step API that returns two bools. (False by default)
  
  Examples:
      >>> env = gym.make("CartPole-v1")
      >>> env # wrapper not applied by default, set to new API
      <TimeLimit<OrderEnforcing<PassiveEnvChecker<CartPoleEnv<CartPole-v1>>>>>
      >>> env = gym.make("CartPole-v1", apply_api_compatibility=True) # set to old API
      <StepAPICompatibility<TimeLimit<OrderEnforcing<PassiveEnvChecker<CartPoleEnv<CartPole-v1>>>>>>
      >>> env = StepAPICompatibility(CustomEnv(), apply_step_compatibility=False) # manually using wrapper on unregistered envs
docstr: Steps through the environment, returning 5 or 4 items depending on `apply_step_compatibility`.
  
  Args:
      action: action to step through the environment with
  
  Returns:
      (observation, reward, terminated, truncated, info) or (observation, reward, done, info)
docstr_tok: ["Steps","through","the","environment",",","returning","5","or","4","items","depending","on","`","apply_step_compatibility","`",".","Args",":","action",":","action","to","step","through","the","environment","with","Returns",":","(","observation",",","reward",",","terminated",",","truncated",",","info",")","or","(","observation",",","reward",",","done",",","info",")"]
code: def step(self, action):
      """Steps through the environment, returning 5 or 4 items depending on `apply_step_compatibility`.
  
      Args:
          action: action to step through the environment with
  
      Returns:
          (observation, reward, terminated, truncated, info) or (observation, reward, done, info)
      """
      step_returns = self.env.step(action)
      if self.output_truncation_bool:
          return convert_to_terminated_truncated_step_api(step_returns)
      else:
          return convert_to_done_step_api(step_returns)
  
imports: import gym
  from gym.logger import deprecation
  from gym.utils.step_api_compatibility import convert_to_done_step_api, convert_to_terminated_truncated_step_api
label_desc: Use image node_id 2 for calling the StepAPICompatibility obj's underlying member method code with example usage: obj.step(action) and returns: convert_to_terminated_truncated_step_api, convert_to_done_step_api