src/Core/Request/Storage/StorageManager.php
public function hasItem($key)
    {
        return ($this->provider->getClient()->get(\sprintf('%s_%s', ProviderInterface::PREF, $key)) && $this->stillRestricted($key));
    }
public function hasItem($key)
    {
        return ($this->provider->getClient()->get(\sprintf('%s_%s', ProviderInterface::PREF, $key)) && $this->stillRestricted($key));
    }
@param $key

@return bool