function a() {
let lang = 'asd';
this.get = (val) => lang+val;
this.get2 = () => 'asd';
}
zzz = function setupB() {
let q = new a();
function aaa(val) {
return q.get(val);
}
aaa.prototype.get = () => q.get2()
return aaa;
}()
console.log(zzz('aaaaa'));
console.log(zzz.get());