code: def stats(self) -> dict:
      return {
          "num_blocks": len(self.blocks),
          "num_accesses": self.num_accesses,
          "total_time": self.total_time,
      }
  
imports: import bisect
  import logging
  import random
  import time
  from collections import defaultdict
  from typing import TYPE_CHECKING, Any, List, Optional
  import numpy
  import ray
  from ray.data._internal.remote_fn import cached_remote_fn
  from ray.data.block import BlockAccessor
  from ray.data.context import DataContext
  from ray.types import ObjectRef
  from ray.util.annotations import PublicAPI
label_desc: Use image node_id 6 for calling the _RandomAccessWorker obj's underlying member method code with example usage: obj.stats() and returns: dict