import { Interface } from '@ethersproject/abi';
import JSBI from 'jsbi';
import { NativeToken } from 'maia-core-sdk';
import { FeeOptions } from '../../types/payment';
export declare abstract class Payments {
    static readonly INTERFACE: Interface;
    /**
     * Cannot be constructed.
     */
    private constructor();
    private static encodeFeeBips;
    static encodeUnwrapWETH9(amountMinimum: JSBI, recipient: string, feeOptions?: FeeOptions): string;
    static encodeSweepToken(token: NativeToken, amountMinimum: JSBI, recipient: string, feeOptions?: FeeOptions): string;
    static encodeRefundETH(): string;
}