export declare const FIAT_CURRENCIES: readonly ["USD", "EUR", "GBP"];
export declare const ALL_CURRENCIES: readonly ["USD", "EUR", "GBP", "BTC", "USDT"];
export type FiatCurrency = (typeof FIAT_CURRENCIES)[number];
export type AnyCurrency = (typeof ALL_CURRENCIES)[number];
export type Amount<T extends string> = {
    amount: string;
    currency: T;
};
export type PaginationList<T> = {
    items: T[];
    count: number;
};
export declare const isFiatCurrency: (value: string) => value is FiatCurrency;
export declare const isAnyCurrency: (value: string) => value is AnyCurrency;
export declare const tryToFiatCurrency: (value: string) => FiatCurrency | undefined;
export declare const tryToAnyCurrency: (value: string) => AnyCurrency | undefined;