public function __construct(CurrencyPair $currencyPair) { parent::__construct(sprintf('The currency pair "%s" is not supported.', $currencyPair->toString())); $this->currencyPair = $currencyPair; }
/** * {@inheritdoc} */ public function storeRate(CurrencyPair $currencyPair, Rate $rate) { $this->cache->save($currencyPair->toString(), $rate, $this->ttl); }