import { AuthSig, SignerLike } from '@lit-protocol/types';
import { ethers } from 'ethers';
/**
 * Generate an AuthSig object using the signer.
 *
 * For more context:
 * We are only using authSig to generate session sigs. In a newer version, we will stop accepting
 * authSig all together from the node and will only accept session sigs. The address being
 * used here will be checksummed.
 *
 * @param signer the signer must have a "signMessage" method
 * @param toSign - the message to sign
 * @param address - (optional) the address of the signer
 * @returns
 */
export declare const generateAuthSig: ({ signer, toSign, address, algo, }: {
    signer: ethers.Wallet | ethers.Signer | SignerLike;
    toSign: string;
    address?: string;
    algo?: "ed25519";
}) => Promise<AuthSig>;