pub fn custom_opts_usage(iopts: Options, brief: &str) -> String {
    iopts.usage_with_format(|opts| {
        let full_param = opts.collect::<Vec<String>>();
        format!(
            "{}\n\nCommon Options:\n{}\n\nModel Options:\n{}\n\nProto Options:\n{}\n",
            brief,
            full_param[0..2].join("\n"),
            full_param[2..7].join("\n"),
            full_param[7..10].join("\n"),
        )
    })
}
/// Derive a formatted message from a set of options.
Derive a formatted message from a set of options.
Derive a formatted message from a set of options .
pub fn custom_opts_usage(iopts: Options, brief: &str) -> String {
    iopts.usage_with_format(|opts| {
        let full_param = opts.collect::<Vec<String>>();
        format!(
            "{}\n\nCommon Options:\n{}\n\nModel Options:\n{}\n\nProto Options:\n{}\n",
            brief,
            full_param[0..2].join("\n"),
            full_param[2..7].join("\n"),
            full_param[7..10].join("\n"),
        )
    })
}
pub fn custom_opts_usage ( iopts : Options , brief : & str ) -> String { iopts . usage_with_format ( | opts | { let full_param = opts . collect :: < Vec < String > > ( ) ; format ! ( " \n \n \n \n \n \n \n \n \n \n " brief full_param [ 0 2 ] join ( " \n " ) full_param [ 2 7 ] join ( " \n " ) full_param [ 7 10 ] join ( " \n " ) ) } ) }
Derive a formatted message from a set of options.
Derive a formatted message from a set of options .
iopts
Options
brief
&str
iopts
Options
brief
&str