export declare const noop: () => void;
export declare const UNDEFINED: undefined;
export declare const OBJECT: ObjectConstructor;
export declare const isUndefined: (v: any) => v is undefined;
export declare const isFunction: (v: any) => v is Function;
export declare const mergeObjects: (a: any, b: any) => any;
export declare const hasWindow: () => boolean;
export declare const hasDocument: () => boolean;
export declare const hasRequestAnimationFrame: () => boolean;