Type Alias LocalBoxFuture 

pub type LocalBoxFuture<'a, T> = Pin<Box<dyn Future<Output = T> + 'a>>;

A boxed future that is not Send, and so cannot cross threads.

Used for the few contracts that wrap something inherently thread-bound — notably the escape hatch onto Rainier ORM’s own Executor API, whose futures hold sea_query statements (and therefore Rc) across their awaits. Code on the request path should never need this; a handler’s future must be Send for the server to spawn it.

Aliased Type

#[repr(transparent)]
pub struct LocalBoxFuture<'a, T> { /* private fields */ }