code: def test_not_in():
      not_in = neurovault.NotIn(0, 1)
  
      assert not_in != 0
      assert not_in == 2
      assert str(not_in) == "NotIn(0, 1)"
  
imports: import hashlib
  import json
  import os
  import re
  import stat
  from urllib import parse
  import numpy
  import pandas
  import pytest
  import requests
  from nilearn._utils.data_gen import generate_fake_fmri
  from nilearn.conftest import _rng
  from nilearn.datasets import neurovault
  from nilearn.image import load_img
label_desc: Use image node_id 20 for calling a global function with example usage: test_not_in() without return types