Javascript – Composition and Inheritance simultaneously – Typescript

I have the problem that I cannot access the attributes of my SteamSession instance in Composition. When I execute the main.ts, I get an undefined in the second console.log when I call getListings(), but I want the cookies attribute of SteamSession to be displayed there. That’s why I tried previously to define the class Listings as a child class of SteamSession, but this leads to a circular dependency in Typescript, combined with composition. (Both files are importing eachother in a infinum loop)

These are my two classes:

1. SteamSession (Parent)

const Listing =  require('./listing');

class steamSession {

    public listingObj;
    public cookies: string;
 

    constructor() {
        this.listingObj = new Listing();
    }
    
    setCookies(cookies: string) {
        this.cookies = cookies;
    }
}

module.exports = steamSession; // Export der Klasse

2. Listing (Child)

class Listing {

    getListings() {
        console.log("Fetching Steam Session Listings");
        console.log(this.cookies);
     }
}

module.exports = Listing;

´

Main TS:

const SteamSession = require('./steamSession');

const session = new SteamSession();
session.setCookies("blablabla");
session.listingObj.getListings(); // Second Console.log prints out undefined

Usecase:
Since I am currently working on a Steam Bot that automates certain actions with Steam, I always need a SteamSession instance, without this no actions with the other classes such as Listing etc. can be performed. The class e.g. Listing needs the cookies from the SteamSession to work at all. All actions in the Listing class are therefore dependent on the SteamSession.
Therefore, when I create a SteamSession instance, I want to create the instance of the Listing class at the same time, because a Listing cannot exist without SteamSession.

In the end, steamsession is a single class that handles everything. The other child classes are only used for better structuring and implementation of the individual tasks, as each child class covers its own subject area.