export declare const runWithDelay: (func: () => void) => NodeJS.Timeout;
export declare const escapeKeyPressHandler: (event: React.KeyboardEvent<HTMLDivElement>) => void;
/**
 * Check if an element is actually visible (not hidden via CSS).
 * Uses the modern checkVisibility API with a fallback for older browsers.
 */
export declare const isElementVisible: (element: Element) => boolean;
/**
 * Check if a floating element (modal, dialog, popover, overlay, etc.) is actually open and blocking.
 *
 * A floating element is considered "open" and blocking if:
 * 1. It's a <dialog> element with the open attribute (always blocking per HTML spec), OR
 * 2. It has role="alertdialog" (always blocking per ARIA spec), OR
 * 3. It has role="dialog" AND:
 *    - It's not aria-hidden="true", AND
 *    - It doesn't have aria-expanded="false" (for collapsible dialogs), AND
 *    - It's actually visible (not just in DOM), AND
 *    - It has aria-modal="true" (indicates blocking modal per ARIA spec)
 *
 * Non-blocking popovers and collapsible dialogs without aria-modal="true" are not considered
 * blocking and should not prevent InfoTip from closing.
 *
 * @param element - The DOM element to check
 * @returns `true` if the floating element is actually open and blocking, `false` otherwise
 */
export declare const isFloatingElementOpen: (element: Element) => boolean;