code: def get_transition(
      self, transition_index: int, lock: bool = True
  ) -> Union[None, Transition]:
      raise ValueError(
          "It is not possible to access specific transitions with a balanced replay buffer"
      )
  
imports: import operator
  import random
  from enum import Enum
  from typing import List, Tuple, Any, Union
  import numpy
  from rl_coach.core_types import Transition
  from rl_coach.memories.memory import MemoryGranularity
  from rl_coach.memories.non_episodic.experience_replay import ExperienceReplayParameters, ExperienceReplay
  from rl_coach.schedules import Schedule, ConstantSchedule
label_desc: Use image node_id 5 for calling the BalancedExperienceReplay obj's underlying member method code with example usage: obj.get_transition(transition_index, lock) without return types