import type { HttpLayer } from "../layer/index.js";
import type { HttpService } from "../service/index.js";
/**
 * A layer that decompresses request bodies.
 *
 * @example
 * ```ts
 * import { RequestDecompressionLayer } from "@taxum/core/middleware/decompression";
 * import { m, Router } from "@taxum/core/routing";
 *
 * const router = new Router()
 *     .route("/", m.get(() => "Hello World))
 *     .layer(new RequestDecompressionLayer());
 * ```
 */
export declare class RequestDecompressionLayer implements HttpLayer {
    private readonly accept;
    private passThroughUnaccepted_;
    /**
     * Creates a new {@link RequestDecompressionLayer}.
     *
     * By default, all encodings are accepted and unaccepted encodings are
     * **not** passed through.
     */
    constructor();
    /**
     * Sets whether to support gzip encoding.
     */
    gzip(enable: boolean): this;
    /**
     * Sets whether to support Deflate encoding.
     */
    deflate(enable: boolean): this;
    /**
     * Sets whether to support Brotli encoding.
     */
    br(enable: boolean): this;
    /**
     * Sets whether to support Zstd encoding.
     */
    zstd(enable: boolean): this;
    /**
     * Disabled support for gzip encoding.
     */
    noGzip(): this;
    /**
     * Disables support for Deflate encoding.
     */
    noDeflate(): this;
    /**
     * Disables support for Brotli encoding.
     */
    noBr(): this;
    /**
     * Disables support for Zstd encoding.
     */
    noZstd(): this;
    /**
     * Sets whether to pass through the request even when the encoding is not
     * supported.
     */
    passThroughUnaccepted(enabled: boolean): this;
    layer(inner: HttpService): HttpService;
}