code: def test_pickle_globals():
      """Unrelated globals should not be included in serialized bytes"""
      b = _dumps(my_small_function_global)
      assert b"my_small_function_global" in b
      assert b"unrelated_function_global" not in b
      assert b"numpy" not in b
  
imports: from __future__ import annotations
  import multiprocessing
  import pickle
  import sys
  from concurrent.futures import ProcessPoolExecutor
  from operator import add
  import pytest
  import dask
  from dask import compute, delayed
  from dask.multiprocessing import _dumps, _loads, get, get_context, remote_exception
  from dask.system import CPU_COUNT
  from dask.utils_test import inc
label_desc: Use image node_id 3 for calling a global function with example usage: test_pickle_globals() without return types