/**
 * The fixed vocabularies shared by the renderer and the editor.
 *
 * `og:type` and `twitter:card` are typed as unions rather than strings by the
 * head-metadata renderer, which validates against these lists and falls back
 * rather than letting an unrecognised value reach the tag. The editor dropdowns
 * are built from the same lists, so an option cannot offer a value the renderer
 * will reject.
 */
export declare const OG_TYPES: readonly ["website", "article", "book", "profile"];
export declare const TWITTER_CARDS: readonly ["summary", "summary_large_image", "player", "app"];
/**
 * The root title an untitled page carries, from the root config's
 * `defaultProps`. Both the editor placeholders and the rendered head tags
 * refuse to treat it as a real value, so they share the constant rather than
 * each holding a copy.
 */
export declare const DEFAULT_EDITOR_ROOT_TITLE = "My Puck Editor";