code: def get_target_network_pairs(self):
      return [(self.old_pi, self.pi), (self.old_encoder, self.encoder)]
  
file_path: ray/rllib/algorithms/appo/torch/appo_torch_rl_module.py
imports: from typing import List
  from ray.rllib.algorithms.appo.appo import OLD_ACTION_DIST_LOGITS_KEY
  from ray.rllib.algorithms.ppo.torch.ppo_torch_rl_module import PPOTorchRLModule
  from ray.rllib.core.models.base import ACTOR
  from ray.rllib.core.models.tf.encoder import ENCODER_OUT
  from ray.rllib.core.rl_module.rl_module_with_target_networks_interface import RLModuleWithTargetNetworksInterface
  from ray.rllib.policy.sample_batch import SampleBatch
  from ray.rllib.utils.annotations import override
  from ray.rllib.utils.nested_dict import NestedDict
label_desc: Use image node_id 2 for calling the APPOTorchRLModule obj's underlying member method code with example usage: obj.get_target_network_pairs() and returns: list