@classmethod
    def get_detail_title(self, ar, obj):
        return str(obj)
Similar to test_update_header_card(), but tests the the
dataset/ETHPy150Open lsaffre/lino/lino/core/actors.py/Actor.get_detail_title--crossover with--dataset/ETHPy150Open spacetelescope/PyFITS/pyfits/tests/test_core.py/TestCore.test_set_card_value