@types/kind-of

kind_of: {
    (thing: undefined): 'undefined';
    (thing: null): 'null';
    (thing: boolean): 'boolean';
    (thing: Buffer): 'buffer';
    (thing: number): 'number';
    (thing: string): 'string';
    (thing: IArguments): 'arguments';
    (thing: Date): 'date';
    (thing: any[]): 'array';
    (thing: RegExp): 'regexp';
    (thing: Error): 'error';
    (thing: Iterator<any, any, undefined>):
        | 'generator'
        | 'stringiterator'
        | 'arrayiterator'
        | 'mapiterator'
        | 'setiterator';
    (thing: (...args: any[]) => any): 'function' | 'generatorfunction';
    (thing: symbol): 'symbol';
    (thing: Promise<any>): 'promise';
    (thing: Map<any, any>): 'map';
    (thing: WeakMap<any, any>): 'weakmap';
    (thing: Set<any>): 'set';
    (thing: WeakSet<any>): 'weakset';
    (thing: Int8Array): 'int8array';
    (thing: Uint8Array): 'uint8array';
    (thing: Uint8ClampedArray): 'uint8clampedarray';
    (thing: Int16Array): 'int16array';
    (thing: Uint16Array): 'uint16array';
    (thing: Int32Array): 'int32array';
    (thing: Uint32Array): 'uint32array';
    (thing: Float32Array): 'float32array';
    (thing: Float64Array): 'float64array';
    (thing: any): string;
};