Importing SBAS module in command line (Ubuntu environment)

Hello! I’m following this notebook (Google Colab) (Pechnikov, A ., 2021) and in the “Load Custom Python Modules” theres a module named “from SBAS import SBAS”. Link: Screenshot - 822201c5af8874bc8cc41c8b060d82f7 - Gyazo

However, when initiating pip install, it doesn’t recognize that module anywhere, any ideias where I can find it?

Best regards,

João Pereira