code: def initialize_env_specs(hparams, env_problem_name):
    
    if env_problem_name:
      env = registry.env_problem(env_problem_name, batch_size=hparams.batch_size)
    else:
      env = rl_utils.setup_env(hparams, hparams.batch_size,
                               hparams.eval_max_num_noops,
                               hparams.rl_env_max_episode_steps,
                               env_name=hparams.rl_env_name)
      env.start_new_epoch(0)
  
    return rl.make_real_env_fn(env)
docs: Initializes env_specs using the appropriate env.