/// <reference types="node" />
declare function is(value: any): string;
declare namespace is {
    const undefined: (value: any) => boolean;
    const string: (value: any) => boolean;
    const number: (value: any) => boolean;
    const function_: (value: any) => boolean;
    const null_: (value: any) => boolean;
    const class_: (value: any) => any;
    const boolean: (value: any) => boolean;
    const symbol: (value: any) => boolean;
    const array: (arg: any) => arg is any[];
    const buffer: (obj: any) => obj is Buffer;
    const nullOrUndefined: (value: any) => boolean;
    const object: (value: any) => boolean;
    const iterable: (value: any) => boolean;
    const generator: (value: any) => boolean;
    const nativePromise: (value: any) => boolean;
    const promise: (value: any) => boolean;
    const generatorFunction: (value: any) => boolean;
    const asyncFunction: (value: any) => boolean;
    const regExp: (value: any) => boolean;
    const date: (value: any) => boolean;
    const error: (value: any) => boolean;
    const map: (value: any) => boolean;
    const set: (value: any) => boolean;
    const weakMap: (value: any) => boolean;
    const weakSet: (value: any) => boolean;
    const int8Array: (value: any) => boolean;
    const uint8Array: (value: any) => boolean;
    const uint8ClampedArray: (value: any) => boolean;
    const int16Array: (value: any) => boolean;
    const uint16Array: (value: any) => boolean;
    const int32Array: (value: any) => boolean;
    const uint32Array: (value: any) => boolean;
    const float32Array: (value: any) => boolean;
    const float64Array: (value: any) => boolean;
    const arrayBuffer: (value: any) => boolean;
    const sharedArrayBuffer: (value: any) => boolean;
    const truthy: (value: any) => boolean;
    const falsy: (value: any) => boolean;
    const nan: (value: any) => boolean;
    const primitive: (value: any) => boolean;
    const integer: (value: any) => boolean;
    const safeInteger: (value: any) => boolean;
    const plainObject: (value: any) => boolean;
    const typedArray: (value: any) => boolean;
    const arrayLike: (value: any) => boolean;
    const inRange: (value: number, range: number | number[]) => boolean;
    const domElement: (value: any) => boolean;
    const infinite: (value: any) => boolean;
    const even: (rem: number) => boolean;
    const odd: (rem: number) => boolean;
    const empty: (value: any) => boolean;
    const emptyOrWhitespace: (value: any) => boolean;
    function any(...predicate: any[]): any;
    function all(...predicate: any[]): any;
}
export default is;