import { BigNumberish } from 'ethers';
import { TransactionRequest } from '../../common';
import { InternalContract } from './internal.contract';
export declare class ERC20TokenContract extends InternalContract {
    constructor();
    encodeTransfer?(to: string, value: BigNumberish): TransactionRequest;
    encodeApprove?(spender: string, value: BigNumberish): TransactionRequest;
}