To access Google Sheets API Google Service Account is required: https://developers.google.com/android/management/service-account
After creating Service Account go to "Keys" and generate new Json key.
Put it to app/config/google-service-account-key.json.
Then enable Google Sheets API for it.
pipenv install --dev
pipenv run pre-commit install -t pre-commit pipenv run pre-commit install -t pre-push