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//! How to require presence of at least N values,
//! like `val1 val2 ... valN ... valM`.
use structopt::StructOpt;
#[derive(StructOpt, Debug)]
struct Opt {
#[structopt(required = true, min_values = 2)]
foos: Vec<String>,
}
fn main() {
let opt = Opt::from_args();
println!("{:?}", opt);
}
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