import type { IBrokerMessageRoutingOptions, IMessageBrokerService } from '../../types';
export declare class NatsService implements IMessageBrokerService {
    private config;
    private connection;
    private sc;
    constructor(config: {
        servers: string[];
        subject: string;
        token?: string;
        user?: string;
        pass?: string;
        tls?: boolean;
    });
    connect(): Promise<void>;
    publish(topic: string, message: object, options?: IBrokerMessageRoutingOptions): Promise<void>;
    subscribe(topic: string, callback: (message: object) => Promise<void>, options?: IBrokerMessageRoutingOptions): Promise<void>;
    disconnect(): Promise<void>;
}