const { ono, Ono } = require("@jsdevtools/ono");
class MyError extends Error {}
ono.myError = new Ono(MyError);
const err = ono(new MyError("aaaa"), "bbbb");
console.log("Ono extended MyError: " + (err instanceof MyError))
const err2 = ono.myError("bbbb");
console.log("Ono created MyError: " + (err2 instanceof MyError))