diff --git a/components/lib/utils/Utils.d.ts b/components/lib/utils/Utils.d.ts
index 215bf4967..bc24c551f 100644
--- a/components/lib/utils/Utils.d.ts
+++ b/components/lib/utils/Utils.d.ts
@@ -75,6 +75,10 @@ export declare class ObjectUtils {
     static convertToFlatCase(str: string): string;
     static isEmpty(value: any): boolean;
     static isNotEmpty(value: any): boolean;
+    static isFunction(value: any): boolean;
+    static isObject(value: any): boolean;
+    static isDate(value: any): boolean;
+    static isArray(value: any): boolean;
     static isPrintableCharacter(char: string): boolean;
     static findLast(value: any[], callback: () => any): any;
     static findLastIndex(value: any[], callback: () => any): number;