def _get_original_item(self, item):
r = self.__original_items[item]
if r is None:
if item in ["notes", "revs", "cards"]:
r = AnkiDataFrame.init_with_table(self, item)
self.__original_items[item] = r
return r
def empty_revs(self):
""" Similar :class:`ankipandas.ankidf.AnkiDataFrame`
to :attr:`revs`, but without any rows. """
return AnkiDataFrame.init_with_table(self, "revs", empty=True)