code: def create(model_config, vec_env, model, algo, env_roller, parallel_envs: int,
             rollout_steps: int, training_steps: int, training_rounds: int=1):
      
      settings = BufferedOffPolicyIterationReinforcerSettings(
          rollout_steps=rollout_steps,
          training_steps=training_steps,
          training_rounds=training_rounds
      )
  
      return BufferedOffPolicyIterationReinforcerFactory(
          settings=settings,
          env_factory=vec_env,
          model_factory=model,
          algo=algo,
          env_roller_factory=env_roller,
          parallel_envs=parallel_envs,
          seed=model_config.seed
      )
docs: Vel factory function