class_docstr: Simple replay buffer that operates over batches.
code: def replay(self) -> SampleBatchType:
      return random.choice(self.replay_batches)
  
file_path: ray/rllib/execution/replay_ops.py
imports: from typing import Optional
  import random
  from ray.rllib.utils.replay_buffers.replay_buffer import warn_replay_capacity
  from ray.rllib.utils.typing import SampleBatchType
label_desc: Use image node_id 3 for calling the SimpleReplayBuffer obj's underlying member method code with example usage: obj.replay() and returns: random