code: def test_slow():
      d = 256
      index = faiss.index_cpu_to_gpu(
          faiss.StandardGpuResources(), 0, faiss.IndexFlatL2(d)
      )
      x = np.random.rand(10**6, d).astype("float32")
      print("add")
      index.add(x)
      print("search")
      index.search(x, 10)
      print("done")
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_slow() without return types