type Duck = {
    type: "duck"
    quack(): string
    beAlive(): void
}
type Sheep = {
    type: "sheep"
    beeh(): string
    beAlive(): void
}

function animalNoise(animal: Duck | Sheep) {
    animal.beAlive()
    animal.quack()
    animal.beeh()

    if (animal.type === "duck") {
        animal.quack()
        animal.beeh()
    }
    if (animal.type === "sheep") {
        animal.quack()
        animal.beeh()
    }
}