/**
 * Raw DEFLATE (ZIP method 8) via in-tree compression streams.
 *
 * Uses `CompressedStreamWriter` / `CompressedStreamReader` with `noWrap: true`
 * (no zlib header or Adler32). The ZIP container, limits, and CFB rejection stay
 * here — `ZipArchive` is not used (open is incomplete / browser-centric).
 *
 * Stream implementation lives under `./compression` (inlined from the former
 * local ej2-deflate vendor sources).
 *
 * @private
 */
/**
 * Raw-DEFLATE compress `data` (no zlib wrapper).
 *
 * Returns a Promise for call-site stability; the ej2 streams API is synchronous.
 */
export declare function deflateRaw(data: Uint8Array): Promise<Uint8Array>;
/**
 * Raw-DEFLATE decompress `data`.
 *
 * `CompressedStreamReader` is a lightweight, stateless decompressor without explicit
 * cleanup methods per ej2-compression design. Internal buffers are automatically
 * garbage collected when the reader object is unreferenced. This pattern is safe for
 * batch processing and high-volume decompression scenarios.
 *
 * Returns a Promise for call-site stability; the ej2 streams API is synchronous.
 */
export declare function inflateRaw(data: Uint8Array, expectedSize?: number): Promise<Uint8Array>;