export declare const validatePhoneNumber: (str: string) => boolean;
export declare const stringToSlug: (str: string) => string;
export declare const validateEmail: (str: string) => boolean;
export declare function findAllIndexes(str: string, pattern: string): number[];
export declare function stringSorter(atitle: string, btitle: string): number;
export declare function capitalize(value: string): string;
export declare function tryForEach(items: any[], callback: (item: any, index: number) => void, printErrors?: boolean): void;
export declare function formatDate(date: Date): string;
export declare function getCookieValue(cookieName: string): string | null;
export declare function isClient(): boolean;
export declare function isServer(): boolean;
export declare function getQueryParams(): URLSearchParams | undefined;
export declare function isBackNavigation(): boolean;
export declare function stringifyQueryParams(params: Record<string, any>, options?: {
    arrayFormat: string;
}): string;
export declare function cloneDeep<T>(obj: T): T;
export declare function groupBy<T>(array: T[], iteratee: string | ((item: T) => string | number)): Record<string, T[]>;
export declare function sortBy<T>(array: T[], ...iteratees: Array<string | ((item: T) => any)>): T[];
export declare function debounce(func: (...args: any[]) => void, wait: number): (...args: any[]) => void;
export declare function reaction(condition: () => any, effect: () => void): import("mobx").IReactionDisposer;