export type TIsNodeArgs = Parameters<typeof isNode>;
export type TIsNodeReturn = ReturnType<typeof isNode>;
/**
 * Checks whether the specified object is a DOM element
 * @param el{any} source object
 * @returns {boolean}
 * @example
 * // How to check if an object is dom node?
 * const isMyElNode = isNode(document.getElementById("test"));
 * console.log(isMyElNode) // => boolean
 * @example
 * // Guard an event target before using DOM Node methods
 * if (isNode(event.target) && container.contains(event.target)) {
 *   console.log("The event came from inside the container");
 * }
 */
export declare const isNode: (el: any) => boolean;