src/Service/CryptoCurrency/PriceFetchInterface.php
<?php
declare(strict_types=1);
namespace CliFyi\Service\CryptoCurrency;
interface PriceFetchInterface
{
/**
* @param string $cryptoCurrency
*
* @return array [['USD' => '7666.4']]
*/
public function getPrices(string $cryptoCurrency): array;
}