interface UseAutoGrowHeightOptions {
    maxLines?: number;
}
interface UseAutoGrowHeightResult {
    /** 0 until first observed. */
    containerHeight: number;
    /** The line box the element renders, read off it rather than a width bucket (`constitution.md` §10);
     *  compare with `containerHeight` for wrapping. 0 where none is stated or measured, and `maxLines` then
     *  sets no ceiling. */
    lineHeight: number;
    scrollEnabled: boolean;
    inputRef: (node: HTMLTextAreaElement | null) => void;
    /** Re-measure after the value changes; width changes are observed. */
    measure: () => void;
}
export declare function useAutoGrowHeight(options?: UseAutoGrowHeightOptions): UseAutoGrowHeightResult;
export {};