Vsch\TranslationManager\Manager::usageCache PHP 메소드

    public function usageCache()
    {
        if ($this->usageCache === null) {
            $this->usageCache = $this->usageCachePrefix() !== '' && \Cache::has($this->usageCacheTransKey) ? \Cache::get($this->usageCacheTransKey) : [];
            $this->usageCacheIsDirty = $this->persistentPrefix !== '' && !\Cache::has($this->usageCacheTransKey);
        }
        return $this->usageCache;
    }