use signal_utils::*;
macro_rules! show {
($e:expr) => { println!("{}: {:?}", stringify!($e), $e) }
}
fn main() {
println!("signal-utils example: main...");
sequence::Builder::default().start (0).interval (10).build().unwrap()
.take (10).enumerate().for_each (|i| show!(i));
println!("signal-utils example: ...main");
}