Depending on the change parameter, it may be possible to
update the sort order without a full resorting. Refer to
the gtk.types.SorterChange documentation for details.
This function is intended for implementers of gtk.sorter.Sorter
subclasses and should not be called from other functions.
Notifies all users of the sorter that it has changed.
This emits the gtk.sorter.Sorter.changed signal. Users of the sorter should then update the sort order via gtk.sorter.Sorter.compare.
Depending on the change parameter, it may be possible to update the sort order without a full resorting. Refer to the gtk.types.SorterChange documentation for details.
This function is intended for implementers of gtk.sorter.Sorter subclasses and should not be called from other functions.