code: def test_unsupported_args(self):
      with warnings.catch_warnings():
          warnings.simplefilter("error")
          with self.assertRaises(UserWarning):
              with self.Pool(1, maxtasksperchild=1):
                  pass
          with self.assertRaises(UserWarning):
              with self.Pool(1, context=object):
                  pass
  
imports: from mpi4py import MPI
  import mpi4py.util.pool
  import concurrent.futures
  import itertools
  import functools
  import warnings
  import unittest
  import time
  import sys
  import os
label_desc: Use image node_id 23 for calling the BaseTestPool obj's underlying member method code with example usage: obj.test_unsupported_args() without return types