Okay.
This is copy past of tutorial.
https://colab.research.google.com/drive/10YhV2QqG-pZLXbsTkJRE-hVcXtmxzBXS 2
https://colab.research.google.com/drive/1IDTOlw3U3ZzCvRAirpISc7UBG8M88oZU 2
700mb vs 330mb