/**
 * Default maximum decompressed body size (10 MB).
 */
export declare const DEFAULT_MAX_BODY_SIZE: number;
/**
 * Parse a request body as JSON, handling Content-Encoding decompression
 * and enforcing a decompressed body size limit for compressed requests.
 *
 * For plain (uncompressed) requests, body size enforcement is expected to be
 * handled by the parent framework (e.g. Hono's `bodyLimit` middleware, or
 * Bun/Node server-level `maxRequestBodySize`). This utility only enforces
 * `maxBodySize` on the *decompressed* output of gzip/deflate streams, since
 * the framework cannot know the decompressed size ahead of time.
 *
 * @param request - Incoming Web API Request
 * @param maxBodySize - Maximum decompressed body size in bytes. `0` disables the limit. Defaults to 10 MB.
 * @returns Parsed JSON body
 */
export declare function parseRequestBody(request: Request, maxBodySize?: number): Promise<unknown>;