Struct Resolved 

pub struct Resolved;

Marker type for handlers whose parameters are already resolved.

Used by the blanket IntoHandler impl for any Handler<E>. Enables passing already-built pipelines, templates, callbacks, and Box<dyn Handler<E>> where IntoHandler is expected.

The registry argument to IntoHandler::into_handler is ignored — the handler’s parameters were resolved against the registry it was originally built with. Callers must ensure the handler is run against the same World it was resolved for.

When returning a resolved handler from a factory function, the Rust 2024 + use<...> annotation applies — see IntoHandler docs.

Users never need to name this type — it’s inferred automatically.