import type { Ref } from 'vue';
/**
 * Composable for detecting text truncation within an HTML element.
 * This composable observes the element for changes in size or content and updates
 * the truncation status accordingly.
 * It creates a clone of the element without line clamping to measure its natural height.
 * It also creates a clone of the parent element to measure the natural height of the text without line clamping.
 * It uses a custom DSAV CSS class to measure the natural height of the text.
 * @param elementRef The reference to the HTML element to check for text truncation.
 * @returns An object containing `isTruncated`, a ref indicating if the text is truncated.
 */
export declare function useTextTruncation(elementRef: Ref<HTMLElement | undefined | null>): {
    isTruncated: Ref<boolean, boolean>;
};