Types and traits for error catchers and their handlers and return types.
An error catching route.
Helper trait to make a Catcher’s Box<dyn Handler> Clone.
Catcher
Box<dyn Handler>
Clone
Trait implemented by Catcher error handlers.
Type alias for the return type of a raw Catcher’s Handler.
Handler
Type alias for the return type of a Catcher’s Handler::handle().
Handler::handle()
