code: def del_keys(self, keys: List[str]) -> List[int]:
      results = []
      for key in keys:
          results.append(self.delete(key))
      return results
  
imports: import asyncio
  import time
  from typing import List
  import numpy
  import ray
  import ray.experimental.internal_kv
  from ray._raylet import GcsClient
  from ray.util.collective.types import ReduceOp, torch_available
  from ray.util.queue import _QueueActor
label_desc: Use image node_id 5 for calling the RayInternalKvStore obj's underlying member method code with example usage: obj.del_keys(keys) and returns: results