export interface ILastQuoteForex {
    ask: number;
    bid: number;
    exchange: number;
    timestamp: number;
}
export interface ILastQuoteForCurrencyPair {
    symbol: string;
    status: string;
    last: ILastQuoteForex;
}
export declare const lastQuoteForCurrencyPair: (apiKey: string, apiBase: string, from: string, to: string) => Promise<ILastQuoteForCurrencyPair>;