protected function getHandlerClassName($apiName) {
        $apiName = ucfirst(strtolower($apiName));
        $neededClass = __NAMESPACE__ . '\\' . 'Endpoints\\Defaults\\' . $apiName;

        if(isset($this->uniqueEndpointHandlers[$apiName])) {
            $neededClass = $this->uniqueEndpointHandlers[$apiName];
        }

        return $neededClass;
    }