import { BigNumber } from 'ethers';
import { Provider } from '@ethersproject/providers';
import { LoanProviderBase } from './loanProvider';
export declare class LoanProviders {
    private readonly providers;
    constructor(chainId: number, asset: string, amount: BigNumber, rpcProvider: Provider);
    /**
     * Search all potential providers to return the best one
     * Can return undefined in the case where no provider can be used for this asset/token
     */
    getBest(): Promise<LoanProviderBase | undefined>;
    private firstValidProvider;
}