code: def __init_subclass__(cls, **kwargs):
      raise ValueError(
          "`LearnerGroupConfig` has been replaced by the `AlgorithmConfig` object of "
          "your experiment. All information that used to be inside "
          "`LearnerGroupConfig` is already available inside an `AlgorithmConfig` "
          "object (e.g. `num_learner_workers` or `num_gpus_per_learner_worker`). "
          "You can build a LearnerGroup directly using an `AlgorithmConfig` via: "
          "`config.build_learner_group(env=..., spaces=..., rl_module_spec=...)`."
      )
  
label_desc: Use image node_id 1 for calling the LearnerGroupConfig obj's underlying member method code with example usage: obj.__init_subclass__(cls) without return types