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| <?php | |
| namespace Money; | |
| use Money\Exception\UnresolvableCurrencyPairException; | |
| /** | |
| * Provides a way to get exchange rate from a third-party source and return a currency pair. | |
| * | |
| * @author Márk Sági-Kazár <mark.sagikazar@gmail.com> | |
| */ | |
| interface Exchange | |
| { | |
| /** | |
| * Returns a currency pair for the passed currencies with the rate coming from a third-party source. | |
| * | |
| * @param Currency $baseCurrency | |
| * @param Currency $counterCurrency | |
| * | |
| * @return CurrencyPair | |
| * | |
| * @throws UnresolvableCurrencyPairException When there is no currency pair (rate) available for the given currencies | |
| */ | |
| public function quote(Currency $baseCurrency, Currency $counterCurrency); | |
| } |