Questions regarding TF.Keras fine-tuned model and support for TF2.0

Hi there, First of all excellent work. I am curious if there are any examples available on using it for TF.Keras model which uses transfer learning (fine-tuned) with pre-trained model such as resnet or inceptionv3? and what is the current support for tensorflow 2.0. I saw there it still uses sessions in the example code section.