code: def setUp(self):
      nbytes = 100 * MPI.DOUBLE.size
      try:
          self.mpi_memory = MPI.Alloc_mem(nbytes)
          self.memory = self.mpi_memory
          memzero(self.memory)
      except MPI.Exception:
          self.mpi_memory = None
          self.memory = bytearray(nbytes)
      self.WIN = MPI.Win.Create(self.memory, 1, self.INFO, self.COMM)
  
imports: from mpi4py import MPI
  import mpiunittest
  import contextlib
  import arrayimpl
  import sys
label_desc: Use image node_id 1 for calling the BaseTestRMA obj's underlying member method code with example usage: obj.setUp() without return types