def _group_name_from_id(project, group_id):
    """Build the group name given the project and group ID.

    :type project: string
    :param project: The project associated with the group.

    :type group_id: string
    :param group_id: The group ID.

    :rtype: string
    :returns: The fully qualified name of the group.
    """
    return 'projects/{project}/groups/{group_id}'.format(
        project=project, group_id=group_id)