*/ private static $classMap = [ 'authorizations' => AuthorizationService::class, 'cardholders' => CardholderService::class, 'cards' => CardService::class, 'disputes' => DisputeService::class, 'transactions' => TransactionService::class, ]; protected function getServiceClass($name) { return \array_key_exists($name, self::$classMap) ? self::$classMap[$name] : null; } }