protected function seedUsers()
    {
        $users = [
            [
                'username' => 'test',
                'password' => 'test123',
                'email'    => 'test@example.com',
                'level'    => User::LEVEL_ADMIN,
                'api_key'  => '9yMHsdioQosnyVK4iCVR',
            ],
        ];

        User::truncate();

        foreach ($users as $user) {
            User::create($user);
        }
    }