/**
 * Collection of utility functions that are deprecated in nodes util.
 */
/**
 * Replaces node isNullOrUndefined.
 */
export declare function isNullOrUndefined(value: any): boolean;
/**
 * Replaces node isString.
 */
export declare function isString(value: any): boolean;
/**
 * Replaces node isBoolean.
 */
export declare function isBoolean(value: any): boolean;
/**
 * Replaces node isNumber.
 */
export declare function isNumber(value: any): boolean;
/**
 * Replaces node isArray.
 */
export declare function isArray(value: any): boolean;