mod options {    use argh::FromArgs;     #[derive(FromArgs)]    /// The lean git    pub struct Args {        #[argh(switch)]        /// print the program version.        pub version: bool,         #[argh(subcommand)]        pub subcommand: SubCommands,    }     #[derive(FromArgs, PartialEq, Debug)]    #[argh(subcommand)]    pub enum SubCommands {        Init(Init),    }     /// Initialize the repository in the current directory.    #[derive(FromArgs, PartialEq, Debug)]    #[argh(subcommand, name = "init")]    pub struct Init {}} use anyhow::Result;use gitoxide_core as core; pub fn main() -> Result<()> {    pub use options::*;    let cli: Args = crate::shared::from_env();    git_features::interrupt::init_handler(std::io::stderr());     match cli.subcommand {        SubCommands::Init(_) => core::repository::init(),    }}