/// <reference types="node" />
import { ValidatorPublicKey, ValidatorSecretKey } from "./validatorKeys";
/**
 * Validator signer (BLS signer)
 */
export declare class ValidatorSigner {
    private readonly secretKey;
    constructor(secretKey: ValidatorSecretKey);
    /**
     * * @deprecated This method will be deprecated! Use the sign method directly.
     * Signs a message.
     */
    static signUsingPem(pemText: string, pemIndex: number | undefined, signable: Buffer | Uint8Array): Promise<Uint8Array>;
    static fromPemFile(path: string, index?: number): Promise<ValidatorSigner>;
    sign(data: Uint8Array): Uint8Array;
    private trySign;
    getPubkey(): ValidatorPublicKey;
}