import { DateOperator, FirstDayOfWeeks, GuidValue, IIcon, TenantRegionalSettings, TimePeriodSettings } from "../../models";
export declare module Utils {
    function isNativeClass(value: any): boolean;
    function isJson(str: any): boolean;
    function asyncForEach<T>(array: Array<T>, callback: (item: T, index?: number, items?: Array<T>) => Promise<void>): Promise<void>;
    function isPromise(val: any): boolean;
    function isString(target: any): boolean;
    function isNumber(target: any): boolean;
    /**
    * Check if object is null or undefined
    */
    function isNull(obj: any): boolean;
    /**
     * Check if object is null or undefined or empty
     */
    function isNullOrEmpty(obj: any): boolean;
    /**
     * Check if array is null or undefined or empty
     */
    function isArrayNullOrEmpty(obj: any): boolean;
    /**
     * Determine whether the argument is an array.
     *
     * @param obj Object to test whether or not it is an array.
     */
    function isArray(obj: any): boolean;
    /**
     * Check if is type of a function
     * @param obj Object to test whether or not it is an function.
     */
    function isFunction(obj: any): boolean;
    /**
     * Check if is type of a Object
     * @param obj Object to test whether or not it is an function.
     */
    function isObject(obj: any): boolean;
    /**
     * Check if is type of a boolean
     * @param obj Object to test whether or not it is an function.
     */
    function isBoolean(obj: any): boolean;
    /**
     * Generate a new guid
     */
    function generateGuid(): string;
    /**
    * Validate guid value
    */
    function isValidGuid(value: string): boolean;
    /**
     * Scheck a guid whether or not it is a empty guid
    */
    function isEmptyGuid(guid: string): boolean;
    /**@deprecated This will be removed in Omnia 7.0. Use @prop {OmniaEnvironmentContext.isBackendSharePointServer}*/
    function isOnPrem(backendRuntime: string): boolean;
    /**@deprecated This will be removed in Omnia 7.0. Use @prop {OmniaEnvironmentContext.isBackendM365} */
    function isOnline(backendRuntime: string): boolean;
    function groupBy<T>(collection: Array<T>, propName: string): Array<{
        key: any;
        items: Array<T>;
    }>;
    /**
     * Find first element in array [items] with property [prop] with value equal to [value]
     */
    function getElementWith<T>(items: Array<T>, prop: string, value: any): T;
    /**
     * Set a timer with an ID. Reset the timer if timewatch is called again with the same ID before the timer has triggered.
     */
    function timewatch(id: string, callback: () => any, ms: number): any;
    function clearTimewatch(id: number): void;
    /**
     * Set a timer with an ID. If timebox is called again with the same ID before the timer has triggered, don't do anything. Otherwise, set a new timer with that ID.
     */
    function timebox(id: string, callback: () => any, ms: number): void;
    /**
     * convert a string to a friendly url string
     */
    function makeFriendlyUrl(str: string, collapseAndTrimDashes?: boolean, whiteSpaceChar?: string): string;
    function getSocialDate(utcDate: Date | string, locale?: string): string;
    function getDayjsLocale(locale?: string): string;
    function clone<T extends I, I>(obj: I): T;
    function castToBoolean(obj: any): boolean;
    function fixUrl(url: string): string;
    function castToInt(obj: any): number;
    function getUrlParts(url: any): {
        href: string;
        host: string;
        hostname: string;
        port: string;
        pathname: string;
        protocol: string;
        hash: string;
        search: string;
    };
    function trimStart(str: string, chr: string): string;
    function trimEnd(str: string, chr: string): string;
    function after(timePeriodSettings: TimePeriodSettings, date?: Date): Date;
    function before(timePeriodSettings: TimePeriodSettings, date?: Date): Date;
    function calculate(timePeriodSettings: TimePeriodSettings, date?: Date, operator?: DateOperator): Date;
    function getScrollParent(node: any): any;
    function throttle(func: any, wait: any, options: any): () => any;
    /**
    *  Convert object keys/ string to camle cases
    */
    function toCamelCase(object: any): any;
    function waitForElementAvailable(el: Element, elementId: string, callBack: () => void): void;
    /**
    * Performs a deep comparison between two values to determine if they are
    * equivalent.
    *
    * **Note:** This method supports comparing arrays, array buffers, booleans,
    * date objects, error objects, maps, numbers, `Object` objects, regexes,
    * sets, strings, symbols, and typed arrays. `Object` objects are compared
    * by their own, not inherited, enumerable properties. Functions and DOM
    * nodes are **not** supported.
    *
    * @category Lang
    * @param value The value to compare.
    * @param other The other value to compare.
    * @returns Returns `true` if the values are equivalent, else `false`.
    * @example
    *
    * var object = { 'user': 'fred' };
    * var other = { 'user': 'fred' };
    *
    * _.isEqual(object, other);
    * // => true
    *
    * object === other;
    * // => false
    */
    function isEqual(value: any, other: any): any;
    function safeStringify(value: any): string;
    function getFileType(fileName: string): string;
    function isImageFormatSupportForMediaPicker(fileName: string): boolean;
    function ensureDateTimeFormat(regionalSettings: TenantRegionalSettings): {
        dateFormat: string;
        timeFormat: string;
    };
    function formatDateTime(regionalSettings: TenantRegionalSettings, date?: Date | string): string;
    function getVuetifyFirstDayOfWeek(value: FirstDayOfWeeks): 0 | 1;
    function removeClaimPrefixFromLoginName(loginName: string): string;
    function getManifestIdByElementName(elementName: string): GuidValue;
    /**
     * Get profile url for online and other environment like sharepoint server
     * online : https://delve.office.com/?u=${id}
     * onprem : mysiteurl + /Person.aspx?accountname=accountName
     * */
    function getProfileUrl(uid: string): string;
    function getOfficeAppURI(fileUrl: string, extension: string): string;
    function getFileExtensionByFileUrl(url: string): string;
    function trapFocus(kevent: KeyboardEvent, anchors: {
        start: HTMLElement;
        end: HTMLElement;
    }, container: HTMLElement): void;
    function truncate(str: string, n: number, useWordBoundary: boolean): string;
    /**
     * Check if icon is null or undefined or empty
     */
    function hasIcon(icon: IIcon): boolean;
    function isUriScheme(url: string): boolean;
    function convertDateToGMT(val: Date): Date;
    function covertDateToLocalTimeZone(val: Date): Date;
    function convertStringToArray(object: any): any;
    /**
     * Support accessibility alert after search completion: Replace message after search
     */
    function supportSearchCompletedAlert(hiddenSearchAlertId: string, message: string): void;
    /**
     * Support accessibility alert after search completion: Get hidden alert id based on componentId
     */
    function getHiddenSearchAlertId(componentId: string): string;
}