Struct Command 

pub struct Command {
    pub name: &'static str,
    pub aliases: &'static [&'static str],
    pub options: Option<&'static [&'static str]>,
}

Fields

name: &'static str

aliases: &'static [&'static str]

options: Option<&'static [&'static str]>

None where the book leaves the options to IMS’s Operations Guide: GMSG, ICMD and RCMD.