/**
 * Check if an element is scrollable
 * @param element
 * @returns True or false
 */
export declare const isScrollable: (element: Element) => boolean;
/**
 * Finds the first child text node of an element
 * @param element The element to search into.
 */
export declare const findTextNode: (element: HTMLElement) => ChildNode | undefined;
/**
 * Function to fetch the Document of a specified URL.
 *
 * @param url - The URL of the page.
 * @param slug - [optional] The slug of the page.
 * @returns
 */
export declare const fetchDocument: (url: string, slug?: string) => Promise<Document>;
/**
 * Function to fetch the Elements of a specified URL.
 *
 * @param url - The URL of the page.
 * @param tagName - The tag name of the elements to fetch. If not provided, returns the whole page as a string.
 * @param asElement - [optional] If true, returns the element as an object.
 * @returns
 */
export declare const fetchElements: (url: URL, tagName?: string, asElement?: boolean) => Promise<string[] | HTMLElement[]>;
/**
 * Fetch elements by attribute
 */
export declare const fetchElementsByAttribute: (url: URL, attribute: string) => Promise<string[]>;
/**
 * Checks if an element is visible
 * @param element
 */
export declare const isVisible: (element: HTMLElement) => boolean;