import { HandlerMetadata } from './HandlerMetadata';
import { NextFunction } from './interface/NextFunction';
import { Request } from './interface/Request';
import { Response } from './interface/Response';
/**
 * Transform a handler to a express handler
 *
 * Support required param check, and param convert for PathParam, BodyParam, QueryParam
 *
 */
export declare class HandlerTransformer {
    private _handlerMetadata;
    readonly handlerMetadata: HandlerMetadata;
    constructor(handlerMetadata: HandlerMetadata);
    transform(): ((err: any, req: Request, res: Response, next: NextFunction) => Promise<any>) | ((req: Request, res: Response, next: NextFunction) => Promise<any>);
    private invokeMethod;
}