vendor/clap-4.2.4/examples/tutorial_derive/02_crate.rs

use clap::Parser;

#[derive(Parser)]
#[command(author, version, about, long_about = None)] // Read from `Cargo.toml`
struct Cli {
    #[arg(long)]
    two: String,
    #[arg(long)]
    one: String,
}

fn main() {
    let cli = Cli::parse();

    println!("two: {:?}", cli.two);
    println!("one: {:?}", cli.one);
}