title: Can we use TF-lite to do retrain?
body: <p>I converted a pretrained model to TF-lite and would like to deploy to the edge device.
  If we got new training data and would like to improve the pretrained model, is it possible to do on the edge device?
  Ex. Is there any method to train the model and save to TF-lite(FlatBuffer) again on edge device?</p>
  
  <p>Thanks for any inputs!</p>