public function create($action)
    {
        $actionName = ucfirst($action);
        $class = sprintf('RedKiteCms\Content\BlockManager\BlockManager%s', $actionName);

        if (!class_exists($class)) {
            return null;
        }

        $reflectionClass = new \ReflectionClass($class);

        return $reflectionClass->newInstance($this->serializer, $this->optionsResolver);
    }