static Glib::RefPtr<KeyframeTreeStore> create(etl::loose_handle<synfigapp::CanvasInterface> canvas_interface_);
static int time_sorter(const Gtk::TreeModel::iterator &rhs,const Gtk::TreeModel::iterator &lhs);
static Glib::RefPtr<KeyframeTreeStore> create(etl::loose_handle<synfigapp::CanvasInterface> canvas_interface_);
static int time_sorter(const Gtk::TreeModel::iterator &rhs,const Gtk::TreeModel::iterator &lhs);