code: def test_many_threads(self):
      cache = Cache(SqliteCacheConfig(self.cache_path))
      num_items = 10  # TODO: Inrcrease to 100
      num_threads = 5  # TODO: Inrcrease to 20
      requests = [{"name": f"request{i}"} for i in range(num_items)]
      responses = [
          {"response": f"response{i}"} for i in range(num_items)
      ]
  
      def run():
          for i in range(num_items):
              response, _ = cache.get(requests[i], lambda: responses[i])
              assert response == responses[i]
  
      threads = [
          threading.Thread(target=run) for _ in range(num_threads)
      ]
      for thread in threads:
          thread.start()
      for thread in threads:
          thread.join(timeout=5)
      assert (
          cache_stats.num_queries[self.cache_path]
          == num_items * num_threads
      )
      assert cache_stats.num_computes[self.cache_path] >= num_items
      assert (
          cache_stats.num_computes[self.cache_path]
          <= num_items * num_threads
      )
  
file_path: H2O/h2o_hf/helm/src/helm/common/test_cache.py
imports: import os
  import tempfile
  import unittest
  import threading
  from helm.common.cache import Cache, SqliteCacheConfig, WithFollowerCacheConfig, cache_stats, get_all_from_sqlite
  from sqlitedict import SqliteDict
label_desc: Use image node_id 7 for calling the TestCache obj's underlying member method code with example usage: obj.test_many_threads() without return types