import type { ImageManifest } from "./service.js";
export type ImageFormat = "webp" | "avif" | "jpeg" | "png";
export interface RegisteredImage {
    src: string;
    widths: number[];
    formats: ImageFormat[];
}
/**
 * Set the active image manifest. Called by the build pipeline after
 * processing, or by the SSR server on startup.
 */
export declare function setImageManifest(manifest: ImageManifest | null): void;
/**
 * Returns the currently active image manifest (or null). Used by `image()`
 * to decide between `<picture>` (manifest present) and plain `<img>`.
 */
export declare function getActiveManifest(): ImageManifest | null;
/**
 * Returns the images registered during the current render pass and clears
 * the registry. Called by the build pipeline after rendering all pages.
 */
export declare function consumeImageRegistry(): RegisteredImage[];
/**
 * Registers an image for build-time processing (if sharp is available).
 */
export declare function registerImage(src: string, widths: number[]): void;