Create a special-purpose sorter that applies the sorting of sorter to the levels of a gtk.tree_list_model.TreeListModel.
Note that this sorter relies on gtk.tree_list_model.TreeListModel.passthrough being false as it can only sort gtk.tree_list_row.TreeListRows.
a gtk.sorter.Sorter
a new gtk.tree_list_row_sorter.TreeListRowSorter
Create a special-purpose sorter that applies the sorting of sorter to the levels of a gtk.tree_list_model.TreeListModel.
Note that this sorter relies on gtk.tree_list_model.TreeListModel.passthrough being false as it can only sort gtk.tree_list_row.TreeListRows.