import { PromiEvent } from 'web3-core';
import { Contract } from 'web3-eth-contract';
export declare enum OUTCOMES {
    INITIAL = 0,
    RESOLVED = 1,
    REJECTED = 2
}
export declare function getUsdcAddress(networkId: number): string;
export declare function sendGaslessTransaction(contractCall: PromiEvent<Contract>): Promise<any>;
export declare function normalizeResponse(txResult: any): any;