interface AttrData {
    name: string;
    description: string;
    values?: {
        name: string;
    }[];
}
interface TagData {
    name: string;
    description: string;
    attributes: AttrData[];
    references?: {
        name: string;
        url: string;
    }[];
}
/** Hand-authored action list — validated against hasAction() in html-data.test.ts. */
export declare const BUILTIN_ACTIONS: readonly ["toggle-layer", "zoom-in", "zoom-out", "filter-layer", "highlight-feature", "fade", "pulse", "populate", "trace", "story-play", "story-pause", "story-seek", "fly-to", "zoom-to-feature", "show-overlay", "hide-overlay", "show-tooltip", "hide-tooltip", "draw-mode", "draw-commit", "draw-cancel", "draw-delete", "draw-clear", "draw-config", "draw-save", "export-region-3d", "measure-mode", "measure-clear", "measure-units", "set-basemap", "set-lighting", "set-terrain", "set-clip-box", "clip-box-edit", "set-widgets-visible", "undo", "redo", "warm-tiles"];
/** Hand-authored widget types — validated against the widget registry in html-data.test.ts. */
export declare const BUILTIN_WIDGETS: readonly ["legend", "layer-switcher", "zoom-controls", "scale-bar", "attribution", "filter", "vega-lite", "dynamic-chart", "player", "draw", "measure", "basemap-switcher", "lighting", "clip-box", "undo-redo", "widgets-toggle", "time-slider", "ifc-browser", "ifc-legend", "feature-inspector", "ifc-inspector", "ifc-loader", "ifc-clash"];
export declare function buildHtmlCustomData(): {
    version: number;
    tags: TagData[];
};
export {};