Function run_in_driver_etc 

pub fn run_in_driver_etc<T: Send + 'static>(
    name: &str,
    allow_thread_blocking: bool,
    unsynchronized: bool,
    p: impl FnOnce() -> T + Send + 'static,
) -> T

Runs the given closure under a new root driver dispatcher, with some additional options. Use [fdf::CurrentDispatcher] to reference the dispatcher if needed.