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use clap::{command, Arg, ArgAction};
fn main() {
let matches = command!() // requires `cargo` feature
.arg(
Arg::new("name")
.short('n')
.long("name")
.action(ArgAction::Append),
)
.get_matches();
let args = matches
.get_many::<String>("name")
.unwrap_or_default()
.map(|v| v.as_str())
.collect::<Vec<_>>();
println!("names: {:?}", &args);
}