migawka-solid-domain.php

<?php

namespace Mozartify\Subscription;

class SubscriptionDomain
{
    public function subscribe($tenantName, $packageType) {}
    public static function getHeartbeatsByPackageType(string $type) {}
    public function buyPackage(int $subscriptionId, string $newPackageType) {}
    public function buyHeartbeats(int $subscriptionId, int $heartbeats) {}
    public function getActivePackage(int $subscriptionId) {}
    public function prepareCommercialOffer(?int $subscriptionId) {}
}