code: def setUp(self):
      super().setUp()
      self.INTERCOMM_ORIG = self.INTERCOMM
      self.INTERCOMM = self.INTERCOMM.Dup()
  
imports: from mpi4py import MPI
  import mpiunittest
  from functools import reduce
label_desc: Use image node_id 1 for calling the TestCCOObjInterDupDup obj's underlying member method code with example usage: obj.setUp() without return types