/** @format */
/**
 * Run a callback when the document.readyState has a certain value
 * @param {string|string[]} state - the state(s) when to run the callback
 * @param {Function} callback - the callback to run
 */
export declare const onReadyState: (state: string | string[], callback: Function) => void;
/**
 * Run a callback when the document.readyState is 'complete'
 * (DOM + assets are loaded)
 * @param {Function} callback - the callback to run
 */
export declare const onComplete: (callback: Function) => void;
/**
 * Run a callback when the document.readyState is 'interactive'
 * (DOM is loaded - equivalent to DOMContentLoaded)
 * @param {Function} callback - the callback to run
 */
export declare const onInteractive: (callback: Function) => void;
export declare const onReady: (callback: Function) => void;
export default onReady;