use crate::*;
/// A reference-counted, interior-mutable handle to a `dyn Component` trait object.
pub type ComponentRc = ;
/// A reference-counted, interior-mutable handle to an `Entity`.
pub type EntityRc = ;
/// A handler function that processes an `EntityEvent`.
pub type EventHandler = ;
/// A map from event name to the list of registered handler closures.
pub type EventHandlers = ;