let composed = module{} => {
    import "host_module.ucg" as host_mod;
    import "site_module.ucg" as site_mod;

    let site_conf = site_mod.site_mod{hostname="example.com", port=80};
    let host_conf = host_mod.host_mod{hostname="example.com"};
};

let unified = composed{};

let site_conf = unified.site_conf;
let host_conf = unified.host_conf;