import { providers } from 'ethers';
export declare class GasStation {
    private maticGasStationUrl;
    private mumbaiGasStationUrl;
    private chainId;
    private provider;
    constructor(provider: providers.Provider);
    fetchGasStationParameters(chainId: number): Promise<GasStationParameters>;
    private fetchGasParamsFromBlock;
}
export interface GasParam {
    maxPriorityFee: number;
    maxFee: number;
}
export declare class GasStationParameters {
    safelow: GasParam;
    standard: GasParam;
    fast: GasParam;
    constructor(safelow: GasParam, standard: GasParam, fast: GasParam);
}