type OverflowAncestors = Array<Element | Window | VisualViewport>;
export declare function getNodeName(node: Node | Window): string;
export declare function getWindow(node: any): Window;
export declare function getDocumentElement(node: Node | Window): HTMLElement;
export declare function isNode(value: unknown): value is Node;
export declare function isElement(value: unknown): value is Element;
export declare function isHTMLElement(value: unknown): value is HTMLElement;
export declare function isShadowRoot(value: unknown): value is ShadowRoot;
export declare function isOverflowElement(element: Element): boolean;
export declare function isTableElement(element: Element): boolean;
export declare function isContainingBlock(element: Element): boolean;
export declare function getContainingBlock(element: Element): HTMLElement | null;
export declare function isWebKit(): boolean;
export declare function isLastTraversableNode(node: Node): boolean;
export declare function getComputedStyle(element: Element): CSSStyleDeclaration;
export declare function getNodeScroll(element: Element | Window): {
    scrollLeft: number;
    scrollTop: number;
};
export declare function getParentNode(node: Node): Node;
export declare function getNearestOverflowAncestor(node: Node): HTMLElement;
export declare function getOverflowAncestors(node: Node, list?: OverflowAncestors, traverseIframes?: boolean): OverflowAncestors;
export {};
