///
import * as jwt from 'jsonwebtoken';
import { JwtModuleOptions, JwtSignOptions, JwtVerifyOptions } from './interfaces';
export declare class JwtService {
private readonly options;
private readonly logger;
constructor(options?: JwtModuleOptions);
sign(payload: string, options?: Omit): string;
sign(payload: Buffer | object, options?: JwtSignOptions): string;
signAsync(payload: string, options?: Omit): Promise;
signAsync(payload: Buffer | object, options?: JwtSignOptions): Promise;
verify(token: string, options?: JwtVerifyOptions): T;
verifyAsync(token: string, options?: JwtVerifyOptions): Promise;
decode(token: string, options?: jwt.DecodeOptions): T;
private mergeJwtOptions;
private overrideSecretFromOptions;
private getSecretKey;
}