export declare class TypeUtils {
    static isString(value: any): boolean;
    static isNumber(value: any): boolean;
    static isBoolean(value: any): boolean;
    static isArray(value: any): boolean;
    /**
     * Checks if array is null or empty
     * @param array Array of any type
     * @returns true if empty, else false
     */
    static isEmpty(array: any[]): boolean;
    /**
     * Checks if value is undefined or null
     * @param value value of any type
     * @returns true if undefined or null, else false
     */
    static isNullOrUndefined(value: any): boolean;
    /**
     * Checks if string is null or empty
     * @param value value of type string
     * @returns true if null or empty, else false
     */
    static isNullOrEmpty(value: string): boolean;
}