import { LineRect } from './background-shape.js';
export type { LineRect };
/** Shared hidden measuring container (single instance per document). */
export declare const getHiddenElement: () => HTMLDivElement;
export declare function isContentWrapping({ html }: {
    html: any;
}): boolean;
export declare function detectSize(html: any): {
    width: number;
    height: number;
};
export declare function detectLineLayout(html: string): {
    rects: LineRect[];
    width: number;
    height: number;
};
/** Line rects only — see detectLineLayout when the size is needed too. */
export declare function detectLineRects(html: string): LineRect[];