import type { Plugin } from './app';
/**
 * Plugin: reject a request whose `Content-Length` exceeds `maxBytes` with
 * `413 Payload Too Large`, before the body is read. A cheap first-line guard
 * against oversized uploads. (Chunked requests that omit `Content-Length` pass
 * this check; enforce those in a streaming parser.)
 *
 * ```ts
 * const app = await createApp({ plugins: [bodyLimit(1_000_000)] }) // 1 MB
 * ```
 *
 * @param maxBytes - size ceiling in bytes; a request is rejected only when its
 *   `Content-Length` is strictly greater, so a body of exactly `maxBytes` passes
 * @returns a plugin whose request hook rejects oversized requests with `413`
 */
export declare function bodyLimit(maxBytes: number): Plugin;
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