Function `with_default`

fn with_default<T, impl FnOnce() -> T: FnOnce() -> T>(dispatcher: &Dispatch, f: impl FnOnce() -> T) -> T

Sets this dispatch as the default for the duration of a closure.

The default dispatcher is used when creating a new span or Event.

    Note: This function required the Rust standard library.
    no_std users should use 
    set_global_default instead.