const mod = function() {
    const mod1 = [];
    return {
        mod: mod1
    };
}();
console.log(mod);
const mod1 = function() {
    const a = [];
    const a1 = a;
    return {
        a
    };
}();
const a = mod1;
const mod2 = function() {
    const b = [];
    const b1 = b;
    return {
        b
    };
}();
const b = mod2;
const mod3 = function() {
    const c = [];
    const c1 = c;
    return {
        c
    };
}();
const c = mod3;