| fn main() { | 
 |     let cmd = clap::Command::new("cargo") | 
 |         .bin_name("cargo") | 
 |         .subcommand_required(true) | 
 |         .subcommand( | 
 |             clap::command!("example").arg( | 
 |                 clap::arg!(--"manifest-path" <PATH>) | 
 |                     .value_parser(clap::value_parser!(std::path::PathBuf)), | 
 |             ), | 
 |         ); | 
 |     let matches = cmd.get_matches(); | 
 |     let matches = match matches.subcommand() { | 
 |         Some(("example", matches)) => matches, | 
 |         _ => unreachable!("clap should ensure we don't get here"), | 
 |     }; | 
 |     let manifest_path = matches.get_one::<std::path::PathBuf>("manifest-path"); | 
 |     println!("{manifest_path:?}"); | 
 | } |