import { ClassType } from '../../types';
import { IRPCServer, RPCServerOptions } from './rpc-server.interface';
export declare class RPCServer implements IRPCServer {
    private natsClient;
    private methodMapping;
    private retryConfig;
    private dlqSubject?;
    private isStarted;
    constructor(options?: RPCServerOptions);
    start(): Promise<void>;
    isConnected(): boolean;
    close(): Promise<void>;
    private getMethodsFromPrototype;
    handleRequest<T extends ClassType>(instance: T): Promise<void>;
    private processRequestWithRetry;
    private processRequest;
    getRegisteredMethods(): Map<string, Set<string>>;
    isMethodRegistered(className: string, methodName: string): boolean;
}