message: [Pytorch]: monior fix
diff: import torch.nn as nn
  -
  +import flexflow.core as ff
  import flexflow.torch.fx as fx
  class Module(nn.Module):
  def __init__(self):
  super(Module, self).__init__()
  - self._ffmodel = None
  + self._ffconfig = ff.FFConfig()
  + self._ffconfig.parse_args()
  + self._ffmodel = ff.FFModel(self._ffconfig)
  self._graph = None
  def __call__(self, input):
  