import { AbstractSigner } from 'ethers';
type SupportedTypes = 'authentication' | 'signup' | 'withdraw' | 'deposit';
interface Options {
    name: string;
    version: string;
    chainId: string;
}
declare class EIP712Helper {
    private readonly EIP712Domain;
    constructor(options: Options);
    signTypedData(signer: AbstractSigner, type: SupportedTypes, data: Record<string, string | number>): Promise<string>;
}
export default EIP712Helper;