code: def reset_internal_state(self):
      super().reset_internal_state()
      self.exploration_policy.select_head()
  
file_path: coach/rl_coach/agents/bootstrapped_dqn_agent.py
imports: from typing import Union
  import numpy
  from rl_coach.agents.dqn_agent import DQNNetworkParameters, DQNAgentParameters
  from rl_coach.agents.value_optimization_agent import ValueOptimizationAgent
  from rl_coach.exploration_policies.bootstrapped import BootstrappedParameters
label_desc: Use image node_id 3 for calling the BootstrappedDQNAgent obj's underlying member method code with example usage: obj.reset_internal_state() without return types