import type { PreviewDocument } from "./types.js";
export type MediaCompareKind = "image" | "video" | "audio";
export type MediaCompareMeta = {
    label: string;
    fileName: string;
    mimeType: string;
    sizeBytes: number | null;
    width: number | null;
    height: number | null;
    durationSec: number | null;
    contentHash: string | null;
    objectUrl: string | null;
};
export declare function getMediaCompareKind(doc: PreviewDocument): MediaCompareKind | null;
export declare function isMediaComparePair(left: PreviewDocument, right: PreviewDocument): boolean;
export declare function renderMediaCompare(host: HTMLElement, left: PreviewDocument, right: PreviewDocument, labels: [string, string]): Promise<() => void>;
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