Function free

Source
pub fn free<T>() -> impl Arg<Item = Vec<T>>
where T: FromStr, <T as FromStr>::Err: Debug + Display,
Examples found in repository?
examples/hello.rs (line 6)
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}