code: def testGetStatusAll(self):
      with self.catchNotImplementedError(4, 1):
          statuses = self.STATUSES
          flag = MPI.Request.Get_status_all(self.REQUESTS)
          self.assertTrue(flag)
          flag = MPI.Request.Get_status_all(self.REQUESTS, None)
          self.assertTrue(flag)
          flag = MPI.Request.Get_status_all(self.REQUESTS, statuses)
          self.assertTrue(flag)
          for status in statuses:
              self.assertEqual(status.source, MPI.ANY_SOURCE)
              self.assertEqual(status.tag, MPI.ANY_TAG)
              self.assertEqual(status.error, MPI.SUCCESS)
      with self.catchNotImplementedError(4, 1):
          flag = MPI.Request.get_status_all(self.REQUESTS)
          self.assertTrue(flag)
  
file_path: mpi4py/test/test_request.py
imports: from mpi4py import MPI
  import mpiunittest
label_desc: Use image node_id 7 for calling the TestRequestArray obj's underlying member method code with example usage: obj.testGetStatusAll() without return types