extern crate kaf;
extern crate log;
fn main() {
kaf::init();
let some: Option<&str> = Some("ok");
let none: Option<&str> = None;
log::trace!("{:?}", some);
log::debug!("{:?}", some);
log::info!("{:?}", some);
log::warn!("{:?}", some);
log::error!("{:?}", none);
}