export interface ICryptoTick {
    price: number;
    size: number;
    exchange: number;
    conditions: number[];
    timestamp: number;
}
export interface ILastCryptoAverage {
    avg?: number;
    tradesAveraged?: number;
}
export interface ILastTradeForACryptoPair {
    status: string;
    symbol: string;
    last: ICryptoTick;
    lastAverage: ILastCryptoAverage;
}
export declare const lastTradeForCryptoPair: (apiKey: string, apiBase: string, from: string, to: string) => Promise<ILastTradeForACryptoPair>;