code: def get_default_config(cls) -> AlgorithmConfig:
      return QMixConfig()
  
imports: from typing import Optional, Type
  from rllib_qmix.qmix.qmix_policy import QMixTorchPolicy
  from ray.rllib.algorithms.algorithm_config import AlgorithmConfig, NotProvided
  from ray.rllib.algorithms.simple_q.simple_q import SimpleQ, SimpleQConfig
  from ray.rllib.execution.rollout_ops import synchronous_parallel_sample
  from ray.rllib.execution.train_ops import multi_gpu_train_one_step, train_one_step
  from ray.rllib.policy.policy import Policy
  from ray.rllib.utils.annotations import override
  from ray.rllib.utils.deprecation import DEPRECATED_VALUE, deprecation_warning
  from ray.rllib.utils.metrics import LAST_TARGET_UPDATE_TS, NUM_AGENT_STEPS_SAMPLED, NUM_ENV_STEPS_SAMPLED, NUM_TARGET_UPDATES, SAMPLE_TIMER, SYNCH_WORKER_WEIGHTS_TIMER
  from ray.rllib.utils.replay_buffers.utils import sample_min_n_steps_from_buffer, update_priorities_in_replay_buffer
  from ray.rllib.utils.typing import ResultDict
label_desc: Use image node_id 1 for calling the QMix obj's underlying member method code with example usage: obj.get_default_config(cls) and returns: QMixConfig