code: def setUp(self):
      try:
          self.mpiobj = MPI.Session.Init()
      except NotImplementedError:
          self.skipTest("mpi-session")
  
imports: from mpi4py import MPI
  import mpiunittest
label_desc: Use image node_id 1 for calling the TestErrhandlerSession obj's underlying member method code with example usage: obj.setUp() without return types