A Molt library crate is simply a Rust crate that can install commands into a Molt interpreter using any of the methods described in this chapter. For example, a crate might provide an install function:

# #![allow(unused_variables)]
#fn main() {
use molt::Interp

pub fn install(interp: &mut Interp) {
    interp.add_command("mycommand", mycommand);
    ...
}
#}