typed stuff

core/src/typed.rs

@@ -2,6 +2,7 @@
 macro_rules! core_state {
     ($vis: vis $state: ty) => {
         $vis type WidgetHandle<W = dyn Widget<$state>> = $crate::WidgetHandle<$state, W>;
+        $vis type WidgetHandles<W = dyn Widget<$state>> = $crate::WidgetHandles<$state, W>;
         $vis type WidgetRef<W = dyn Widget<$state>> = $crate::WidgetRef<$state, W>;
         $vis type Ui = $crate::Ui<$state>;
     };