code: def setUp(self):
      self.REQUESTS = [MPI.Request() for i in range(5)]
      self.STATUSES = [MPI.Status() for i in range(5)]
      self.STATUS = self.STATUSES[0]
      for status in self.STATUSES:
          status.source = 0
          status.tag = 0
          status.error = MPI.ERR_OTHER
  
file_path: mpi4py/test/test_request.py
imports: from mpi4py import MPI
  import mpiunittest
label_desc: Use image node_id 1 for calling the TestRequestArray obj's underlying member method code with example usage: obj.setUp() without return types