GtkSourceView3.SourceMarkinclude module type of struct include GtkSourceView3Props.SourceMark endval cast : 'a Gobject.obj -> GtkSourceView3_types.source_mark Gobject.objmodule P = GtkSourceView3Props.SourceMark.Pval create : ?category:string -> GtkSourceView3_types.source_mark Gobject.param list -> GtkSourceView3_types.source_mark Gobject.objval next : [> `sourcemark ] Gtk.obj -> string option -> GtkSourceView3_types.source_mark Gtk.obj optionval prev : [> `sourcemark ] Gtk.obj -> string option -> GtkSourceView3_types.source_mark Gtk.obj option