export declare function isDefined(obj: unknown): boolean;
export declare function isNumber(obj: unknown): boolean;
export declare function isInteger(obj: unknown): boolean;
export declare function isString(obj: unknown): boolean;
export declare function isEmptyString(obj: unknown): boolean;
export declare function isNotEmptyString(obj: unknown): boolean;
export declare function isColor(obj: unknown): boolean;
export declare function isEmail(obj: unknown): boolean;
export declare function isIPV4(obj: unknown): boolean;
export declare function isIPV6(obj: unknown): boolean;
export declare function isUrl(obj: unknown): boolean;
export declare function isSerial(obj: unknown): boolean;
export declare function isObject(obj: unknown): boolean;
export declare function isRegExp(obj: unknown): boolean;
export declare function isArray(obj: unknown): boolean;
export declare function isEmptyArray(obj: unknown): boolean;
export declare function isNotEmptyArray(obj: unknown): boolean;
export declare function inArray(searchIn: unknown, obj: unknown): boolean;
export declare function isPlainObject(obj: unknown): boolean;
export declare function isEmptyPlainObject(obj: unknown): boolean;