code: def path(self):
      return "rl_coach.agents.qr_dqn_agent:QuantileRegressionDQNAgent"
  
imports: from copy import copy
  from typing import Union
  import numpy
  from rl_coach.agents.dqn_agent import DQNAgentParameters, DQNNetworkParameters, DQNAlgorithmParameters
  from rl_coach.agents.value_optimization_agent import ValueOptimizationAgent
  from rl_coach.architectures.head_parameters import QuantileRegressionQHeadParameters
  from rl_coach.core_types import StateType
  from rl_coach.schedules import LinearSchedule
label_desc: Use image node_id 2 for calling the QuantileRegressionDQNAgentParameters obj's underlying member method code with example usage: obj.path() and returns: str