import type { Middleware } from '../context';
import { KobpParsable } from './doc.helpers';
/**
 * This will mutates the inputs
 * `query` will mutates context.query
 * `params` will mutates context.params
 * `body` will mutates context.request.body
 * `headers` will mutates context.request.headers
 */
export declare const withValidation: <Q extends Record<string, string>, P extends Record<string, string>, H extends Record<string, string>, B = any>(schemaSpec: {
    query?: KobpParsable<Q>;
    params?: KobpParsable<P>;
    body?: KobpParsable<B>;
    headers?: KobpParsable<H>;
}) => Middleware;