/**
 * Creates a sharp-constructor-compatible browser encoder.
 *
 * The returned function matches the sharp API surface that gltf-transform uses:
 * `encoder(buffer)` → instance with `.resize()`, `.webp/jpeg/png()`,
 * `.toBuffer()`, and `.metadata()`.
 *
 * Pass the result directly to `TextureCompressOptions.encoder`:
 * ```ts
 * await optimizer.compressTextures({
 *   encoder: createBrowserTextureEncoder(),
 *   targetFormat: 'webp',
 *   quality: 80,
 * })
 * ```
 */
export declare function createBrowserTextureEncoder(): (inputBuffer: Uint8Array | ArrayBuffer) => {
    resize(w?: number, h?: number, _opts?: unknown): /*elided*/ any;
    webp(opts?: {
        quality?: number;
    }): /*elided*/ any;
    jpeg(opts?: {
        quality?: number;
    }): /*elided*/ any;
    png(_opts?: unknown): /*elided*/ any;
    /**
     * sharp-compatible `.toFormat(format, opts)` — gltf-transform calls this
     * instead of `.webp()` / `.jpeg()` / `.png()` directly.
     */
    toFormat(format: string, opts?: {
        quality?: number;
        lossless?: boolean;
        nearLossless?: boolean;
    }): /*elided*/ any;
    toBuffer(): Promise<Uint8Array>;
    metadata(): Promise<{
        width: number;
        height: number;
        format: string;
    }>;
};