/** Clears measured placement values when the listbox closes. */
export declare function resetSearchSelectListboxPosition(listboxElement: HTMLElement): void;
/**
 * Places an open listbox within the visible intersection of its viewport and
 * clipping ancestors.
 */
export declare function positionSearchSelectListbox(anchorElement: HTMLElement, listboxElement: HTMLElement): void;
/**
 * Keeps the active option visible inside its listbox.
 *
 * @param optionElement - Active option, when one exists.
 */
export declare function revealSearchSelectOption(listboxElement: HTMLElement, optionElement: HTMLElement | undefined): void;