/**
 * Returns first child element, or the parent element itself, that satisfies the `condition` function.
 * @param el
 * @param condition
 * @returns {Element}
 */
export declare function findFirst<T extends Element>(el: Element, condition: (el: Element) => el is T): T | null;
export declare function findFirst(el: Element, condition: (el: Element) => boolean): Element | null;
export declare function findFirstChild<T extends Element>(el: Element, condition: (el: Element) => el is T): T | null;
export declare function findFirstChild(el: Element, condition: (el: Element) => boolean): Element | null;
export declare function closest(el: HTMLElement | null, condition: (el: HTMLElement) => boolean): HTMLElement | null;
export declare function closest(el: Element | null, condition: (el: Element) => boolean): Element | null;
export declare function closestParent(el: HTMLElement, condition: (el: HTMLElement) => boolean): HTMLElement | null;
export declare function closestParent(el: Element, condition: (el: HTMLElement) => boolean): HTMLElement | null;
export declare function isFocused(el: Element): boolean;
export declare function isFocusedDeep(el: Element): boolean;
export declare function isFocusable(el: Element): el is HTMLElement;
/**
 * Returns focused element.
 * @returns {Element}
 */
export declare function getFocusedElement(): Element | null;
export declare function isDescendant(el: Element, descEl: Element): boolean;
export declare function isSelfOrDescendant(el: Element, descEl: Element): boolean;
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