code: def test_numpy_serialization(ray_start_regular):
      array = np.zeros(314)
      from ray.cloudpickle import dumps
  
      buffers = []
      inband = dumps(array, protocol=5, buffer_callback=buffers.append)
      assert len(inband) < array.nbytes
      assert len(buffers) == 1
  
imports: import collections
  import io
  import logging
  import re
  import string
  import sys
  import weakref
  from dataclasses import make_dataclass
  import numpy
  import pytest
  from numpy import log
  import ray
  import ray.cluster_utils
label_desc: Use image node_id 4 for calling a global function with example usage: test_numpy_serialization(ray_start_regular) without return types