method virtual custom_encode_iter : 'row -> 'a * 'b * 'cmethod virtual custom_decode_iter : 'a -> 'b -> 'c -> 'rowmethod virtual custom_n_columns : intmethod virtual custom_get_column_type : int -> Gobject.g_typemethod virtual custom_get_iter : Gtk.tree_path -> 'row optionmethod virtual custom_get_path : 'row -> Gtk.tree_pathmethod virtual custom_get_value : 'row -> int -> Gobject.g_value -> unitmethod virtual custom_iter_next : 'row -> 'row optionmethod virtual custom_iter_children : 'row option -> 'row optionmethod virtual custom_iter_has_child : 'row -> boolmethod virtual custom_iter_n_children : 'row option -> intmethod virtual custom_iter_nth_child : 'row option -> int -> 'row optionmethod virtual custom_iter_parent : 'row -> 'row optionmethod custom_ref_node : < custom_decode_iter : 'a -> 'b -> 'c -> 'row; custom_encode_iter : 'row -> 'a * 'b * 'c; custom_get_column_type : int -> Gobject.g_type; custom_get_iter : Gtk.tree_path -> 'row option; custom_get_path : 'row -> Gtk.tree_path; custom_get_value : 'row -> int -> Gobject.g_value -> unit; custom_iter_children : 'row option -> 'row option; custom_iter_has_child : 'row -> bool; custom_iter_n_children : 'row option -> int; custom_iter_next : 'row -> 'row option; custom_iter_nth_child : 'row option -> int -> 'row option; custom_iter_parent : 'row -> 'row option; custom_n_columns : int; custom_ref_node : 'row -> unit; custom_unref_node : 'row -> unit; .. > -> 'row -> unitmethod custom_unref_node : < custom_decode_iter : 'a -> 'b -> 'c -> 'row; custom_encode_iter : 'row -> 'a * 'b * 'c; custom_get_column_type : int -> Gobject.g_type; custom_get_iter : Gtk.tree_path -> 'row option; custom_get_path : 'row -> Gtk.tree_path; custom_get_value : 'row -> int -> Gobject.g_value -> unit; custom_iter_children : 'row option -> 'row option; custom_iter_has_child : 'row -> bool; custom_iter_n_children : 'row option -> int; custom_iter_next : 'row -> 'row option; custom_iter_nth_child : 'row option -> int -> 'row option; custom_iter_parent : 'row -> 'row option; custom_n_columns : int; custom_ref_node : 'row -> unit; custom_unref_node : 'row -> unit; .. > -> 'row -> unit