code: def testPickle(self):
      from pickle import dumps, loads
  
      self.STATUS.source = 1
      self.STATUS.tag = 2
      self.STATUS.error = MPI.ERR_ARG
      status = loads(dumps(self.STATUS))
      self.assertEqual(status.source, 1)
      self.assertEqual(status.tag, 2)
      self.assertEqual(status.error, MPI.ERR_ARG)
  
file_path: mpi4py/test/test_status.py
imports: from mpi4py import MPI
  import mpiunittest
label_desc: Use image node_id 12 for calling the TestStatus obj's underlying member method code with example usage: obj.testPickle() without return types