import type { Theme } from "@design-parity/core";
/** A request to rasterize one variant of an HTML export. */
export interface RasterRequest {
    /** Absolute path to the HTML export to render. */
    htmlPath: string;
    /** Variant state, e.g. `"default"`. */
    state: string;
    theme?: Theme;
    size?: string;
}
/** The product of rasterization: an absolute PNG path and its dimensions. */
export interface RasterResult {
    /** Absolute path to the written PNG. */
    pngPath: string;
    width: number;
    height: number;
}
/** Renders an HTML export variant to a PNG on disk. */
export type Rasterizer = (req: RasterRequest) => Promise<RasterResult>;
/**
 * Default rasterizer: drives a headless Chrome/Chromium via `--screenshot`.
 *
 * It writes the PNG into a fresh temp directory and reads back its dimensions.
 * Never invoked by the adapter for exports that ship pre-rendered `src` images;
 * only raw exports (or `src`-less variants) reach it.
 *
 * @throws a clear, actionable error if no Chrome/Chromium binary is found.
 */
export declare const browserRasterizer: Rasterizer;
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