code: def path(self):
      return "rl_coach.agents.rainbow_dqn_agent:RainbowDQNAgent"
  
imports: from typing import Union
  import numpy
  from rl_coach.agents.categorical_dqn_agent import CategoricalDQNAlgorithmParameters, CategoricalDQNAgent, CategoricalDQNAgentParameters
  from rl_coach.agents.dqn_agent import DQNNetworkParameters
  from rl_coach.architectures.head_parameters import RainbowQHeadParameters
  from rl_coach.architectures.middleware_parameters import FCMiddlewareParameters
  from rl_coach.base_parameters import MiddlewareScheme
  from rl_coach.exploration_policies.parameter_noise import ParameterNoiseParameters
  from rl_coach.memories.non_episodic.prioritized_experience_replay import PrioritizedExperienceReplayParameters, PrioritizedExperienceReplay
label_desc: Use image node_id 2 for calling the RainbowDQNAgentParameters obj's underlying member method code with example usage: obj.path() and returns: str