import { NextFunction } from 'express';
import { OpenAPIV3 } from 'openapi-police';
import { Operation } from './operation.js';
import { APIRequest, APIResponse } from './types.js';
export declare function rpc(target: JSONRPC, propertyKey: string): void;
export declare class JSONRPCError extends Error {
    code: number;
    data?: any | undefined;
    constructor(code: number, message: string, data?: any | undefined);
}
export declare abstract class JSONRPC extends Operation {
    protected getCustomInfo(): OpenAPIV3.OperationObject;
    handler(req: APIRequest, res: APIResponse, next: NextFunction): any;
    protected errorHandler(err: any, req: APIRequest, res: APIResponse, next: NextFunction): void;
}