code: def testBcastIntra(self, msglist=None, check=None):
      comm = self.COMM
      size = comm.Get_size()
      for smess in msglist or messages:
          for root in range(size):
              rmess = comm.bcast(smess, root)
              if msglist and check:
                  self.assertTrue(check(rmess))
              else:
                  self.assertEqual(rmess, smess)
  
imports: from mpi4py import MPI
  from mpi4py.util import pkl5
  import sys, os
label_desc: Use image node_id 24 for calling the BaseTest obj's underlying member method code with example usage: obj.testBcastIntra(msglist, check) without return types