BaseServiceHandler::getCurrencyList

function getCurrencyList();

/**
 * The type of client that the handler can work with
 *
 * If, depending on PS_MODE, the handler can work with different types of clients,
 * then you can implement validation in a similar way:
 *
 * ```php
 * 	public function getClientType($psMode)
 * 	{
 * 		if ($psMode === self::MODE_ALFABANK)
 *		{
 *			return ClientType::B2B;
 *		}
 *
 *		return ClientType::B2C;
 *	}