code: def test_ray_internal_kv_collisions(serve_instance):  # noqa: F811
      kv1 = RayInternalKVStore()
      kv1.put("1", b"1")
      assert kv1.get("1") == b"1"
  
      kv2 = RayInternalKVStore("namespace")
  
      assert kv2.get("1") is None
  
      kv2.put("1", b"-1")
      assert kv2.get("1") == b"-1"
      assert kv1.get("1") == b"1"
  
label_desc: Use image node_id 2 for calling a global function with example usage: test_ray_internal_kv_collisions(serve_instance) without return types