//! A2A's application layer — use cases the wire codec routes into.
//!
//! Each handler is the *consumer* of a narrow port trait declared here. The
//! port trait's return type is a domain error, not an infrastructure one, so
//! the handler can be tested without a socket and the adapter can map
//! `reqwest` / `tokio` failures into the domain shape at the boundary.
pub
pub use ;
pub use ;
pub use A2aRequestHandlerExt;
pub use ;