def get_project_id_from_service_account_email(service_account_email: str) -> str:
    """
    Get GCP project id from service_account_email

    >>> get_project_id_from_service_account_email('cromwell-test@tob-wgs.iam.gserviceaccount.com')
    'tob-wgs'
    """
    # quick and dirty
    return service_account_email.split('@')[-1].split('.')[0]