export declare function useCommonUtils(): {
    isNull: (value: any) => value is null;
    isUndefined: (value: any) => value is undefined;
    isValidString: (value: any) => string | false;
    isDef: <T>(val: T) => val is NonNullable<T>;
    isString: (val: unknown) => val is string;
    isNumber: (val: unknown) => val is number;
    isBoolean: (val: unknown) => val is null;
    isArray: (arg: any) => arg is any[];
    isMultiArray: (val: unknown, level?: number) => boolean;
    isSymbol: (val: unknown) => val is symbol;
    isFunction: (val: unknown) => val is FunctionConstructor;
    isObject: (val: unknown) => val is Record<any, any>;
    isPromise: <T_1 = any>(val: unknown) => val is Promise<T_1>;
    isNumeric: (val: string) => boolean;
    isDate: (val: unknown) => val is Date;
    addUnit: (value: string | number) => string | undefined;
    camelToKebabCase: (camelStr: string) => string;
};