pub type DynSystem<E = FrameEvent> = Box<dyn System<E> + Send + Sync>;
Aliased Typeยง
struct DynSystem<E = FrameEvent>(/* private fields */);
pub type DynSystem<E = FrameEvent> = Box<dyn System<E> + Send + Sync>;
struct DynSystem<E = FrameEvent>(/* private fields */);