type HTMLElementOrNull = HTMLElement | null;
/**
 * Finds all the elements in the given root node that can be focused by a 'tab' keypress.
 * In addition, the trap-start and trap-end sentinel nodes are excluded, and all contained shadow roots are walked recursively
 * @param {Node} rootNode The containing node from which traversal begins.
 * @param {string} selector The CSS selector used to query for matching, tabbable elements.
 * @param {Node[]} elementsToIgnore Elements to ignore
 */
export declare function findAllTabbableElements(rootNode: HTMLElementOrNull | ShadowRoot, selector: string, elementsToIgnore?: HTMLElementOrNull[]): HTMLElement[];
export {};