code: def check_synced(self):
      if self.comm is None:
          return
      if self.comm.Get_rank() == 0:  # this is root
          theta = self.getflat()
          self.comm.Bcast(theta, root=0)
      else:
          thetalocal = self.getflat()
          thetaroot = np.empty_like(thetalocal)
          self.comm.Bcast(thetaroot, root=0)
          assert (thetaroot == thetalocal).all(), (
              thetaroot,
              thetalocal,
          )
  
file_path: baselines/baselines/common/mpi_adam.py
imports: import baselines.common.tf_util
  import tensorflow
  import numpy
label_desc: Use image node_id 4 for calling the MpiAdam obj's underlying member method code with example usage: obj.check_synced() without return types