import { ethers } from 'ethers';
export declare enum SigType {
    EIP712 = 1,
    ETH_SIGN = 2,
    WALLET_BYTES32 = 3
}
export declare function canRecover(signature: ethers.BytesLike): boolean;
export declare function recoverSigner(digest: ethers.BytesLike, signature: ethers.BytesLike): string;
export declare function isValidSignature(address: string, digest: ethers.BytesLike, signature: ethers.BytesLike, provider: ethers.Provider): boolean | Promise<boolean>;
export declare function tryRecoverSigner(digest: ethers.BytesLike, signature: ethers.BytesLike): string | undefined;