Changing batch size of learner loaded with load_learner

Is there way to change the batch size when running get_preds() on learner which has been loaded with load_learner?

You can change the batchsize of your DataBunch at any time with data.batch_size = ...

So I would load the learner and change the batch_size of its databunch, something like this?

learner = load_learner(path=<path> fname=<pkl filename>) = 100