code: def testFence(self):
      win = self.WIN
      LMODE = [
          0,
          MPI.MODE_NOSTORE,
          MPI.MODE_NOPUT,
          MPI.MODE_NOSTORE | MPI.MODE_NOPUT,
      ]
      GMODE = [
          0,
          MPI.MODE_NOPRECEDE,
          MPI.MODE_NOSUCCEED,
      ]
      win.Fence()
      for lmode in LMODE:
          for gmode in GMODE:
              assertion = lmode | gmode
              win.Fence(assertion)
      win.Fence()
  
imports: from mpi4py import MPI
  import mpiunittest
  import contextlib
  import arrayimpl
  import sys
label_desc: Use image node_id 13 for calling the BaseTestRMA obj's underlying member method code with example usage: obj.testFence() without return types