Vsch\TranslationManager\Manager::clearCache PHP Method

    public function clearCache($groups = null)
    {
        if (!$groups || $groups === '*') {
            $this->cache = [];
            $this->cacheIsDirty = !!$this->persistentPrefix;
        } elseif ($this->cache()) {
            if (!is_array($groups)) {
                $groups = [$groups];
            }
            foreach ($groups as $group) {
                if (array_key_exists($group, $this->cache)) {
                    unset($this->cache[$group]);
                    $this->cacheIsDirty = !!$this->persistentPrefix;
                }
            }
        }
    }