/**
 * What is actually CUT inside a truncating box, shared by DataTable `ellipsis` cells (gh#1262,
 * gh#1269) and ListRow titles (gh#1298).
 *
 * Internal: reachable from no published subpath.
 */
/** Something that already takes focus — a box holding one needs no tab stop of its own. */
export declare const TRUNCATION_FOCUSABLE = "a[href], button, input, select, textarea, [tabindex]:not([tabindex=\"-1\"]), [contenteditable=\"true\"]";
/**
 * The box itself when it overflows, else the first descendant that ends in an ellipsis
 * (`text-overflow: ellipsis`) and overflows — a `Text truncate` link beside a badge or an avatar
 * is cut while its container fits. `null` when nothing is cut.
 */
export declare function truncatedPart(box: HTMLElement): HTMLElement | null;