export declare function isWindow(obj: EventTarget): obj is Window;
export declare function isDocument(obj: Node): obj is Document;
export declare function contains(a: Document, b: Node): boolean;
export declare function isAttached(doc: Document, elem: Node): boolean;
export declare function nodeName(elem: Element, name: string): boolean;
export declare function camelCase(string: string): string;
export declare function resolveArray<T>(elOrArray: T | T[]): T[];
export declare function mergeObject(first: any, ...args: any[]): any;
export declare function traverseNodes(elem: Node, dir: {
    [K in keyof HTMLElement]: HTMLElement[K] extends Node ? K : never;
}[keyof HTMLElement], cb: (elem: HTMLElement) => {
    done?: boolean;
    push?: boolean;
}): HTMLElement[];