import { Observable } from 'rxjs';
export declare function map(array: Array<any>, mapper: (value: any, index?: number) => any): any[];
export declare function filter(array: Array<any>, iteratee: (value: any, index?: number) => any): any[];
export declare function isArray(array: any): boolean;
export declare function times(howManyTimes: number, iteratee: (value?: any) => any): any[];
export declare function forEach(array: Array<any>, iteratee: (value: any, index: number) => any): void;
export declare function remove(array: Array<any>, iteratee: (value: any, index: number) => any): any[];
export declare function removeAtIndex(array: Array<any>, index: number): void;
export declare function get(object: any, path: any, defaultVal?: any): any;
export declare function find(array: Array<any>, finder: (value: any, index: number, obj: any[]) => boolean): any;
export declare function truncate(value: string, maxLength: number): string;
export declare function indexOf(items: any, what: any): any;
export declare function concat(...arrays: any[]): any[];
export declare function replace(str: string, reg: RegExp, newVal: string): string;
export declare function orderBy(array: Array<any>, key: string, asc: 'asc' | 'desc'): any[];
export declare function orderByWithoutCase(array: Array<any>, key: string, asc: 'asc' | 'desc'): any[];
export declare function cloneDeep(object: any): any;
export declare function isEmpty(item: any): boolean;
export declare function isObject(val: any): boolean;
export declare function join(items: Array<any>, separator: string): string | any[];
export declare function observe<T>(obs: Promise<T> | Observable<T>): Observable<T>;