import type { MatchOptions, RawImage } from './types.js';
import type { AsciiFrame } from './frame.js';
export type AsciiSource = RawImage | ImageData | HTMLImageElement | HTMLCanvasElement | OffscreenCanvas | ImageBitmap | HTMLVideoElement | VideoFrame;
/**
 * The easiest path (spec §2): exact structural-v1 CPU matching of any source.
 * SSR-safe to import; DOM sources require a browser at call time.
 */
export declare function renderAscii(source: AsciiSource, options: MatchOptions): Promise<AsciiFrame>;