code: def _get_randint(host, port):
      return random.randint(0, 100000)
  
imports: import random
  import time
  import unittest
  from unittest.mock import MagicMock, patch
  import fakeredis
  from gokart.redis_lock import RedisClient, RedisParams, make_redis_key, make_redis_params, wrap_with_dump_lock, wrap_with_load_lock, wrap_with_remove_lock, wrap_with_run_lock
label_desc: Use image node_id 1 for calling the TestRedisClient obj's underlying member method code with example usage: obj._get_randint(host, port) and returns: random