code: def testSetCancelled(self):
      try:
          self.STATUS.Set_cancelled(True)
          flag = self.STATUS.Is_cancelled()
          self.assertTrue(flag)
      except NotImplementedError:
          if MPI.Get_version() >= (2, 0):
              raise
          self.skipTest("mpi-status-set_cancelled")
  
file_path: mpi4py/test/test_status.py
imports: from mpi4py import MPI
  import mpiunittest
label_desc: Use image node_id 8 for calling the TestStatus obj's underlying member method code with example usage: obj.testSetCancelled() without return types