import { Rates } from './options'; /** * Get the conversion rate. * @param base Base currency. * @param rates Object containing currency rates (for example from an API, such as Open Exchange Rates). * @param from Currency from which you want to convert. * @param to Currency to which you want to convert. * @return Conversion result. */ export default function getRate(base: string, rates: Rates, from: string | undefined, to: string): number;