import type { PondoknusaRequest } from './request.js';
import type { Middleware } from './types.js';
export interface CompressionOptions {
    /** Minimum uncompressed body size in bytes. Default: 1024. */
    threshold?: number;
    /**
     * Brotli quality (0–11) for dynamic responses. Default: 4 — comparable
     * speed to gzip with a better ratio. Higher values suit pre-compressed
     * static assets, not per-request work.
     */
    brotliQuality?: number;
    /** Return `false` to skip compression for a specific request/response. */
    filter?: (request: PondoknusaRequest, response: Response) => boolean;
}
/**
 * Brotli/gzip compression for factory-built responses (`Response.html`,
 * `Response.json`, `Response.text`, …).
 *
 * Streaming bodies (`Response.ssrStream`, `Response.streamHtml`, SSE) are
 * passed through untouched so progressive rendering keeps its early-flush
 * semantics. Compress streams at the CDN/reverse-proxy layer instead.
 */
export declare function createCompressionMiddleware(options?: CompressionOptions): Middleware;
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