import { SigningKey } from "ethers";
/**
 * 	@class Web3Signer
 */
export declare class Web3Signer {
    /**
     *	@param privateKey	{ string | SigningKey }
     *	@param obj		{ any }
     *	@param exceptedKeys	{ Array<string> }
     *	@returns {Promise<string>}
     */
    static signObject(privateKey: string | SigningKey, obj: any, exceptedKeys?: Array<string>): Promise<string>;
    /**
     *	@param privateKey	{ string | SigningKey }
     *	@param message		{ string | Uint8Array }
     *	@returns {Promise<string>}
     */
    static signMessage(privateKey: string | SigningKey, message: string | Uint8Array): Promise<string>;
    /**
     *	@param sig	{any}
     *	@returns {boolean}
     */
    static isValidSig(sig: any): boolean;
}
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