Source for https://hub.docker.com/r/breph/ha-google-home_get-token which was created to make the process of getting a master token from Google's Foyer API more easy. Especially used for the home assistant integration ha-google-home.
The script get_tokens.py is a slightly modified version from this one: https://gist.github.com/rithvikvibhu/952f83ea656c6782fbd0f1645059055d