code: def testCommSpawnDefaults2(self):
      self.COMM.Barrier()
      count = 2 + (self.COMM.Get_size() == 0)
      COMMAND = [self.COMMAND] * count
      ARGS = [self.ARGS] * len(COMMAND)
      child = self.COMM.Spawn_multiple(COMMAND, ARGS, 1, MPI.INFO_NULL)
      local_size = child.Get_size()
      remote_size = child.Get_remote_size()
      child.Barrier()
      child.Disconnect()
      self.COMM.Barrier()
      self.assertEqual(local_size, self.COMM.Get_size())
      self.assertEqual(remote_size, len(COMMAND))
  
imports: from mpi4py import MPI
  import mpiunittest
  import sys, os, mpi4py
label_desc: Use image node_id 3 for calling the BaseTestSpawnMultiple obj's underlying member method code with example usage: obj.testCommSpawnDefaults2() without return types