Function `with_default`

fn with_default<T, S, impl FnOnce() -> T: FnOnce() -> T>(subscriber: S, f: impl FnOnce() -> T) -> T
where
    S: Subscriber + Send + Sync + 'static

Sets this Subscriber as the default for the current thread for the duration of a closure.

The default subscriber is used when creating a new Span or Event.