/**
 * Generate schema.org `ImageObject` JSON-LD for image metadata.
 *
 * Accepts author/copyright holders, thumbnail, licenses and descriptive
 * metadata and formats them into an `ImageObject` suitable for JSON-LD
 * embedding. Only provided fields are emitted.
 *
 * See `ImageMetadataOptions` for the exact accepted fields.
 * @returns A JSON-LD compatible `ImageObject`
 */
interface SimplePerson {
    name: string;
    url?: string;
}
interface ImageThumbnail {
    url: string;
    width?: number;
    height?: number;
}
interface ImageMetadataOptions {
    name?: string;
    contentUrl: string;
    description?: string;
    caption?: string;
    uploadDate?: string;
    author?: string | SimplePerson;
    copyrightHolder?: string | SimplePerson;
    license?: string;
    encodingFormat?: string;
    contentSize?: string;
    thumbnail?: string | ImageThumbnail;
    keywords?: string[];
}
declare const generateImageMetadataSchema: ({ name, contentUrl, description, caption, uploadDate, author, copyrightHolder, license, encodingFormat, contentSize, thumbnail, keywords, }: ImageMetadataOptions) => any;

export { generateImageMetadataSchema };