// Automatically generated from TypeScript type definitions provided by
// DefinitelyTyped (https://github.com/DefinitelyTyped/DefinitelyTyped),
// which is licensed under the MIT license; see file DefinitelyTyped-LICENSE
// in parent directory.
// Type definitions for Node.js 10.5.x
// Project: http://nodejs.org/
// Definitions by: Microsoft TypeScript 
//                 DefinitelyTyped 
//                 Parambir Singh 
//                 Christian Vaagland Tellnes 
//                 Wilco Bakker 
//                 Nicolas Voigt 
//                 Chigozirim C. 
//                 Flarna 
//                 Mariusz Wiktorczyk 
//                 wwwy3y3 
//                 Deividas Bakanas 
//                 Kelvin Jin 
//                 Alvis HT Tang 
//                 Sebastian Silbermann 
//                 Hannes Magnusson 
//                 Alberto Schiabel 
//                 Klaus Meinhardt 
//                 Huw 
//                 Nicolas Even 
//                 Bruno Scheufler 
//                 Mohsen Azimi 
//                 Hong Vn Khi 
//                 Alexander T. 
//                 Lishude 
//                 Andrew Makarov 
//                 Zane Hannan AU 
// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped

/**
 * @externs
 * @fileoverview Definitions for module "util"
 */

var util = {};

/**
 * @interface
 */
util.InspectOptions = function() {};

/**
 * @type {boolean}
 */
util.InspectOptions.prototype.showHidden;

/**
 * @type {number}
 */
util.InspectOptions.prototype.depth;

/**
 * @type {boolean}
 */
util.InspectOptions.prototype.colors;

/**
 * @type {boolean}
 */
util.InspectOptions.prototype.customInspect;

/**
 * @param {*} format
 * @param {...*} param
 * @return {string}
 */
util.format = function(format, param) {};

/**
 * @param {string} string
 * @return {void}
 */
util.debug = function(string) {};

/**
 * @param {...*} param
 * @return {void}
 */
util.error = function(param) {};

/**
 * @param {...*} param
 * @return {void}
 */
util.puts = function(param) {};

/**
 * @param {...*} param
 * @return {void}
 */
util.print = function(param) {};

/**
 * @param {string} string
 * @return {void}
 */
util.log = function(string) {};

/**
 * @param {*} object
 * @param {boolean=} showHidden
 * @param {number=} depth
 * @param {boolean=} color
 * @return {string}
 */
util.inspect = function(object, showHidden, depth, color) {};

/**
 * @param {*} object
 * @param {util.InspectOptions} options
 * @return {string}
 */
util.inspect = function(object, options) {};

/**
 * @param {*} object
 * @return {boolean}
 */
util.isArray = function(object) {};

/**
 * @param {*} object
 * @return {boolean}
 */
util.isRegExp = function(object) {};

/**
 * @param {*} object
 * @return {boolean}
 */
util.isDate = function(object) {};

/**
 * @param {*} object
 * @return {boolean}
 */
util.isError = function(object) {};

/**
 * @param {*} constructor
 * @param {*} superConstructor
 * @return {void}
 */
util.inherits = function(constructor, superConstructor) {};

/**
 * @param {string} key
 * @return {(function(string, ...*): void)}
 */
util.debuglog = function(key) {};

/**
 * @param {*} object
 * @return {boolean}
 */
util.isBoolean = function(object) {};

/**
 * @param {*} object
 * @return {boolean}
 */
util.isBuffer = function(object) {};

/**
 * @param {*} object
 * @return {boolean}
 */
util.isFunction = function(object) {};

/**
 * @param {*} object
 * @return {boolean}
 */
util.isNull = function(object) {};

/**
 * @param {*} object
 * @return {boolean}
 */
util.isNullOrUndefined = function(object) {};

/**
 * @param {*} object
 * @return {boolean}
 */
util.isNumber = function(object) {};

/**
 * @param {*} object
 * @return {boolean}
 */
util.isObject = function(object) {};

/**
 * @param {*} object
 * @return {boolean}
 */
util.isPrimitive = function(object) {};

/**
 * @param {*} object
 * @return {boolean}
 */
util.isString = function(object) {};

/**
 * @param {*} object
 * @return {boolean}
 */
util.isSymbol = function(object) {};

/**
 * @param {*} object
 * @return {boolean}
 */
util.isUndefined = function(object) {};

/**
 * @param {Function} fn
 * @param {string} message
 * @return {Function}
 */
util.deprecate = function(fn, message) {};

module.exports.InspectOptions = util.InspectOptions;

module.exports.format = util.format;

module.exports.debug = util.debug;

module.exports.error = util.error;

module.exports.puts = util.puts;

module.exports.print = util.print;

module.exports.log = util.log;

module.exports.inspect = util.inspect;

module.exports.inspect = util.inspect;

module.exports.isArray = util.isArray;

module.exports.isRegExp = util.isRegExp;

module.exports.isDate = util.isDate;

module.exports.isError = util.isError;

module.exports.inherits = util.inherits;

module.exports.debuglog = util.debuglog;

module.exports.isBoolean = util.isBoolean;

module.exports.isBuffer = util.isBuffer;

module.exports.isFunction = util.isFunction;

module.exports.isNull = util.isNull;

module.exports.isNullOrUndefined = util.isNullOrUndefined;

module.exports.isNumber = util.isNumber;

module.exports.isObject = util.isObject;

module.exports.isPrimitive = util.isPrimitive;

module.exports.isString = util.isString;

module.exports.isSymbol = util.isSymbol;

module.exports.isUndefined = util.isUndefined;

module.exports.deprecate = util.deprecate;

/**
 * @param {Object} destination
 * @param {Object} source
 * @return {Object}
 */
util._extend = function(destination, source) {};

module.exports._extend = util._extend;