/**
 * Tests if a given value is iterable using for..of or Array.from()
 *
 * @param   {any}  input
 * @param   {boolean} strict
 *
 * @returns {boolean}
 * @category Types
 */
export function isIterable(input: any, strict?: boolean): boolean;
/**
 * Tests if a given value is a number or is safely coerced to a number.
 *
 * @param {any} input Value to test
 *
 * @returns {boolean}
 * @category Types
 */
export function isNumeric(input: any): boolean;
/**
 * Tests if a given value is a JavaScript primitive (strings, numbers, booleans)
 *
 * @function isPrimitive
 * @param {any} input Value to test
 * @returns {boolean}
 * @category Types
 */
export function isPrimitive(input: any): boolean;
/**
 * Tests if a given value is an object, strictly or loosely
 *
 * @param   {any}  input Value to test
 * @param   {boolean} [strict] If true, will only return true for plain objects with no prototypes.
 * This will exclude Functions and any result of Object.create().
 *
 * @returns {boolean}
 * @category Types
 */
export function isObject(input: any, strict?: boolean): boolean;
/**
 * Tests if a given value is a collection that can be mapped by our utilities
 *
 * @param   {any}     collection Value to be tested
 * @param   {boolean} listsOK    Pass false to exclude Arrays and Sets as valid.
 *
 * @returns {boolean}
 * @category Types
 */
export function isMappable(collection: any, listsOK?: boolean): boolean;
/**
 * Returns the total values within a given collection, regardless of collection type.
 *
 * @param   {Collection} collection Collection to be measured
 *
 * @returns {number}
 * @category Types
 */
export function sizeOf(collection: Collection): number;
/**
 * Tests if a given value is truthy, with extra logic to validate dates.
 *
 * @param   {any}  value   Value to be tested
 * @param   {boolean} [deep] If true, the function will return false for empty collections.
 *
 * @returns {boolean}
 * @category Types
 */
export function isTruthy(value: any, deep?: boolean): boolean;
/**
 * Tests if a given value is falsey, with extra logic to validate dates.
 *
 * @param   {any}  value   Value to be tested
 * @param   {boolean} [deep] If true, the function will return false for empty collections.
 *
 * @returns {boolean}
 * @category Types
 */
export function isFalsey(value: any, deep?: boolean): boolean;
/**
 * Tests if the first value is greater than the second value, accepting any type
 *
 * @param   {any} a
 * @param   {any} b
 *
 * @returns {boolean}
 * @category Types
 */
export function gt(a: any, b: any): boolean;
/**
 * Tests if the first value is less than the second value, accepting any type
 *
 * @param   {any} a
 * @param   {any} b
 *
 * @returns {boolean}
 * @category Types
 */
export function lt(a: any, b: any): boolean;
/**
 * A collection of values that can be iterated over
 * For strings, the string is treated as a collection of single characters.
 *
 * @typedef {string|Array|Map|Set|Iterator|Iterable|object} Collection
 * @global
 */
/**
 * Tests if a given value is an Array
 *
 * @function isArray
 * @param {any} input Value to test
 * @returns {boolean}
 * @category Types
 */
export const isArray: (arg: any) => arg is any[];
export function isNumber(input: any): boolean;
export function isBoolean(input: any): boolean;
export function isString(input: any): boolean;
export function isFunction(input: any): boolean;
export function isNull(input: any): boolean;
export function isUndefined(input: any): boolean;
export function isUndefinedOrNull(input: any): boolean;
export function isNotUndefinedOrNull(input: any): boolean;
export function isMap(input: any): boolean;
export function isSet(input: any): boolean;
export function isDate(input: any): boolean;
export function isRegExp(input: any): boolean;
export function isTrue(input: any): boolean;
export function isFalse(input: any): boolean;
export function isList(input: any): boolean;
export function isDict(input: any): boolean;
export function isIterator(input: any): boolean;
export function isPromise(input: any): boolean;
export function isGenerator(input: any): boolean;
/**
 * A collection of values that can be iterated over
 * For strings, the string is treated as a collection of single characters.
 */
export type Collection = string | any[] | Map<any, any> | Set<any> | Iterator<any, any, undefined> | Iterable<any> | object;