mnb-exchange-rate/build/request/exchange_rates.d.ts

[Docs - mnb.hu](https://www.mnb.hu/sajtoszoba/sajtokozlemenyek/2015-evi-sajtokozlemenyek/tajekoztatas-az-arfolyam-webservice-mukodeserol)

import { Request } from '../request';
export type GetExchangeRatesRequest = Request & {
    startDate: string;
    endDate: string;
    currencies: string[];
};