import { UnsignedDepositStruct, UnsignedRFQMQuoteStruct, UnsignedRFQTQuoteStruct, UnsignedXChainRFQTQuoteStruct } from '../types';
export declare class Helpers {
    static buf2hex(input: Buffer): string;
    static hexToBuf(v: string): Buffer;
    static concatRSV(r: Buffer, s: Buffer, v: number): string;
    static padToEven(a: string): string;
    static stripHexPrefix(str: string): string;
    static isHexPrefixed(str: string): boolean;
    static timestamp(): number;
    static setExpiry(time: number): number;
    static hashMessage(message: string): string;
    static hashRFQTQuote(quoteData: UnsignedRFQTQuoteStruct, chainId: number): string;
    static hashMakerRFQMQuote(quoteData: UnsignedRFQMQuoteStruct, chainId: number): string;
    static hashXChainRFQTQuote(quoteData: UnsignedXChainRFQTQuoteStruct): string;
    static hashDeposit(depositData: UnsignedDepositStruct, liquidityProvider: string, chainId: number): string;
}