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use clap::{app_from_crate, arg};
fn main() {
let matches = app_from_crate!()
.arg(arg!(--two <VALUE>))
.arg(arg!(--one <VALUE>))
.get_matches();
println!("two: {:?}", matches.value_of("two").expect("required"));
println!("one: {:?}", matches.value_of("one").expect("required"));
}