index.js
function register ( type, lang, handler ) {
    if (Array.isArray(lang)) {
        lang.forEach((v) => store[type].langs[v] = handler);
        return;
    }
    store[type].langs[lang] = handler;
}
function register ( type, lang, handler ) {
    if (Array.isArray(lang)) {
        lang.forEach((v) => store[type].langs[v] = handler);
        return;
    }
    store[type].langs[lang] = handler;
}
Register Loader of different Language
@param {String | String[]} type | style | script | template |
@param {String} lang scss, ts, jade etc.
@param {Function} handler