clap 3.1.18

A simple to use, efficient, and full-featured Command Line Argument Parser
Documentation 
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use clap::{AppSettings, Parser};

#[derive(Parser)]
#[clap(author, version, about, long_about = None)]
#[clap(args_override_self = true)]
#[clap(allow_negative_numbers = true)]
#[clap(global_setting(AppSettings::DeriveDisplayOrder))]
struct Cli {
    #[clap(long)]
    two: String,
    #[clap(long)]
    one: String,
}

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

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