Convert json to typescript object [duplicate]

I am trying to convert a json to object and access the attribute values in typescript. I have tried chatgpt but the answer from that is static considering there are only 2 games i.e game1 and game2. How can I convert it into class object considering there can be multiple games.

{
"defaultConfiguration": {
    "listedGames": {
        "game1": {
            "Id": 1,
            "contentPartnerSplit": {
                "partner1": 50,
                "partner2": 50
            },
            "regionalSplit": {
                "region1": 50,
                "region2": 20,
                "region3": 30
            }
        },
        "game2": {
            "Id": 2,
            "contentPartnerSplit": {
                "partner1": 30,
                "partner2": 70
            },
            "regionalSplit": {
                "region1": 50,
                "region2": 50
            }
        }
        .
        .
        .
    }
}

}

Below is what I tried

export class GamesConfig {
    defaultConfiguration?: {
        listedGames?: {
        games?: Map<string, Games>;
      }
    };
  }

export class Games {
    Id: string;
    regionalSplit: RegionalSplit;
    contentPartnerSplit: ContentPartnerSplit;
  }

But when I try to parse json and access attribute Id I get undefined

const jsonObj = JSON.parse(config)
jsonObj.defaultConfiguration?.listedGames?.games?.get('game1')?.Id