@classmethod
def add_user_group(cls, options=None):
    """Associate an user group.

        Usage:
            hammer user-group add-user-group [OPTIONS]

        Options:
            --id ID
            --name NAME                                   Name to search by
            --user-group USER_GROUP_NAME                  Name to search by
            --user-group-id USER_GROUP_ID
        """
    cls.command_sub = 'add-user-group'
    return cls.execute(cls._construct_command(options), output_format='csv')
