add static method
Implementation
static void add(OverlayShower shower, {String? key}) {
if (key != null) {
_map()[key] = shower;
}
_list().add(shower);
}
static void add(OverlayShower shower, {String? key}) {
if (key != null) {
_map()[key] = shower;
}
_list().add(shower);
}