Best Practice for inference

type t_Prisma<MNs extends Record<string, string>> = {
    ModelName: MNs
}

class Prisma<P extends t_Prisma<MNs>, MNs extends Record<string, string>> implements t_Prisma<MNs> {
    _prisma: P;

    constructor(_prisma: P) {
        this._prisma = _prisma;
    }

    get ModelName() {
        return this._prisma.ModelName;
    }
}

class Prisma<MNs extends Record<string, string>> implements t_Prisma<MNs> {
    _prisma: t_Prisma<MNs>;

    constructor(_prisma: t_Prisma<MNs>) {
        this._prisma = _prisma;
    }

    get ModelName() {
        return this._prisma.ModelName;
    }
}