Abstract static getters w/o implementation?

getters.ts

abstract class Vpc {
    static VpcAlias: string;
    // Static getters require a default implementation, so we provide one
    // that throws an error. This enforces our subclass overriding.
    static get PublicSubnets(): string[] { Vpc.unimplemented("PublicSubnets"); return [""] };
    static get PrivateSubnets(): string[] { Vpc.unimplemented("PrivateSubnets"); return [""] };
    public static get Subnets(): string[] {
        return [...Vpc.PublicSubnets, ...Vpc.PrivateSubnets];
    }

    static unimplemented(method: string): void {
        throw Error(`${Vpc.name} ${method} is not implemented`)
    }
}

export class Dev1 extends Vpc {
    // static readonly VpcAlias: "dev1"
    static readonly VpcId = "vpc-0ced7da27751d4bd6"
    static readonly SubnetPrivate1 = "subnet-01721256b852a87dc"
    static readonly SubnetPrivate2 = "subnet-0267340547462a952"
    static readonly SubnetPublic1 = "subnet-070313e525660c5c1"
    static readonly SubnetPublic2 = "subnet-02ea690e1d6f92146"
    public get PublicSubnets(): string[] {
        return [Dev1.SubnetPublic1, Dev1.SubnetPublic2]
    }
    public get PrivateSubnets(): string[] {
        return [Dev1.SubnetPrivate1, Dev1.SubnetPrivate2]
    }
}