import BigNumber from 'bignumber.js';
import { ProviderController } from '../provider';
import { CoinInfo } from '../types/chain';
import { StorageLike } from '../types/external-config';
import { PriceChannel } from './interfaces';
declare class PriceController {
    private static readonly PRICE_CACHE_TIMEOUT;
    readonly providerController: ProviderController;
    readonly storage: StorageLike;
    private readonly priceCache;
    constructor(providerController: ProviderController, storage: StorageLike);
    private _channels?;
    get channels(): Array<PriceChannel>;
    static generateSearchPaths(coin: CoinInfo, unit: string): Array<Array<string>>;
    static splitPathsToPairs(paths: Array<Array<string>>): Array<string>;
    initChannels(): Array<PriceChannel>;
    pricing(coins: Array<CoinInfo>): Promise<void>;
    getPrice(coin: CoinInfo, unit: string, orDefault?: number | BigNumber): Promise<BigNumber>;
    getPriceNoCache(coin: CoinInfo, unit: string, orDefault?: number | BigNumber): Promise<BigNumber>;
}
export { PriceController };