Funnily enough, the Tensor2tensor library he mentions that replaced the old deprecated layer is now also deprecated. https://github.com/tensorflow/tensor2tenso

Funnily enough, the Tensor2tensor library he mentions that replaced the old deprecated layer is now also deprecated. https://github.com/tensorflow/tensor2tensor https://github.com/tensorflow/tensor2tensor > It is now in maintenance mode — we keep it running and welcome bug-fixes, but encourage users to use the successor library Trax.