code: def testPControl(self):
      for level in (2, 1, 0):
          MPI.Pcontrol(level)
      MPI.Pcontrol(1)
  
imports: from mpi4py import MPI
  import mpiunittest
  import os
label_desc: Use image node_id 9 for calling the TestEnviron obj's underlying member method code with example usage: obj.testPControl() without return types