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use clap::Parser;
#[derive(Parser)] // requires `derive` feature
#[command(name = "cargo")]
#[command(bin_name = "cargo")]
enum CargoCli {
ExampleDerive(ExampleDeriveArgs),
}
#[derive(clap::Args)]
#[command(author, version, about, long_about = None)]
struct ExampleDeriveArgs {
#[arg(long)]
manifest_path: Option<std::path::PathBuf>,
}
fn main() {
let CargoCli::ExampleDerive(args) = CargoCli::parse();
println!("{:?}", args.manifest_path);
}