Function free
Source pub fn free<T>() -> impl Arg<Item = Vec<T>>
5fn main() {
6 match free::<String>()
7 .vec_singleton()
8 .required()
9 .parse_env()
10 .result
11 {
12 Ok(name) => println!("Hello, {}!", name),
13 Err(msg) => eprintln!("Error: {}", msg),
14 }
15}