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import { Operator } from './Operator';
import { Subscriber } from './Subscriber';
import { Subscription } from './Subscription';
import { TeardownLogic, OperatorFunction, PartialObserver, Subscribable } from './types';
import { iif } from './observable/iif';
import { throwError } from './observable/throwError';
/**
* A representation of any set of values over any amount of time. This is the most basic building block
* of RxJS.
*
* @class Observable<T>
*/
export declare class Observable<T> implements Subscribable<T> {
/** Internal implementation detail, do not use directly. */
_isScalar: boolean;
/** @deprecated This is an internal implementation detail, do not use. */
source: Observable<any>;
/** @deprecated This is an internal implementation detail, do not use. */
operator: Operator<any, T>;
/**
* @constructor
* @param {Function} subscribe the function that is called when the Observable is
* initially subscribed to. This function is given a Subscriber, to which new values
* can be `next`ed, or an `error` method can be called to raise an error, or
* `complete` can be called to notify of a successful completion.
*/
constructor(subscribe?: (this: Observable<T>, subscriber: Subscriber<T>) => TeardownLogic);
/**
* Creates a new cold Observable by calling the Observable constructor
* @static true
* @owner Observable
* @method create
* @param {Function} subscribe? the subscriber function to be passed to the Observable constructor
* @return {Observable} a new cold observable
* @nocollapse
* @deprecated use new Observable() instead
*/
static create: Function;
/**
* Creates a new Observable, with this Observable as the source, and the passed
* operator defined as the new observable's operator.
* @method lift
* @param {Operator} operator the operator defining the operation to take on the observable
* @return {Observable} a new observable with the Operator applied
*/
lift<R>(operator: Operator<T, R>): Observable<R>;
subscribe(observer?: PartialObserver<T>): Subscription;
/** @deprecated Use an observer instead of a complete callback */
subscribe(next: null | undefined, error: null | undefined, complete: () => void): Subscription;
/** @deprecated Use an observer instead of an error callback */
subscribe(next: null | undefined, error: (error: any) => void, complete?: () => void): Subscription;
/** @deprecated Use an observer instead of a complete callback */
subscribe(next: (value: T) => void, error: null | undefined, complete: () => void): Subscription;
subscribe(next?: (value: T) => void, error?: (error: any) => void, complete?: () => void): Subscription;
/** @deprecated This is an internal implementation detail, do not use. */
_trySubscribe(sink: Subscriber<T>): TeardownLogic;
/**
* @method forEach
* @param {Function} next a handler for each value emitted by the observable
* @param {PromiseConstructor} [promiseCtor] a constructor function used to instantiate the Promise
* @return {Promise} a promise that either resolves on observable completion or
* rejects with the handled error
*/
forEach(next: (value: T) => void, promiseCtor?: PromiseConstructorLike): Promise<void>;
/** @internal This is an internal implementation detail, do not use. */
_subscribe(subscriber: Subscriber<any>): TeardownLogic;
/**
* @nocollapse
* @deprecated In favor of iif creation function: import { iif } from 'rxjs';
*/
static if: typeof iif;
/**
* @nocollapse
* @deprecated In favor of throwError creation function: import { throwError } from 'rxjs';
*/
static throw: typeof throwError;
pipe(): Observable<T>;
pipe<A>(op1: OperatorFunction<T, A>): Observable<A>;
pipe<A, B>(op1: OperatorFunction<T, A>, op2: OperatorFunction<A, B>): Observable<B>;
pipe<A, B, C>(op1: OperatorFunction<T, A>, op2: OperatorFunction<A, B>, op3: OperatorFunction<B, C>): Observable<C>;
pipe<A, B, C, D>(op1: OperatorFunction<T, A>, op2: OperatorFunction<A, B>, op3: OperatorFunction<B, C>, op4: OperatorFunction<C, D>): Observable<D>;
pipe<A, B, C, D, E>(op1: OperatorFunction<T, A>, op2: OperatorFunction<A, B>, op3: OperatorFunction<B, C>, op4: OperatorFunction<C, D>, op5: OperatorFunction<D, E>): Observable<E>;
pipe<A, B, C, D, E, F>(op1: OperatorFunction<T, A>, op2: OperatorFunction<A, B>, op3: OperatorFunction<B, C>, op4: OperatorFunction<C, D>, op5: OperatorFunction<D, E>, op6: OperatorFunction<E, F>): Observable<F>;
pipe<A, B, C, D, E, F, G>(op1: OperatorFunction<T, A>, op2: OperatorFunction<A, B>, op3: OperatorFunction<B, C>, op4: OperatorFunction<C, D>, op5: OperatorFunction<D, E>, op6: OperatorFunction<E, F>, op7: OperatorFunction<F, G>): Observable<G>;
pipe<A, B, C, D, E, F, G, H>(op1: OperatorFunction<T, A>, op2: OperatorFunction<A, B>, op3: OperatorFunction<B, C>, op4: OperatorFunction<C, D>, op5: OperatorFunction<D, E>, op6: OperatorFunction<E, F>, op7: OperatorFunction<F, G>, op8: OperatorFunction<G, H>): Observable<H>;
pipe<A, B, C, D, E, F, G, H, I>(op1: OperatorFunction<T, A>, op2: OperatorFunction<A, B>, op3: OperatorFunction<B, C>, op4: OperatorFunction<C, D>, op5: OperatorFunction<D, E>, op6: OperatorFunction<E, F>, op7: OperatorFunction<F, G>, op8: OperatorFunction<G, H>, op9: OperatorFunction<H, I>): Observable<I>;
pipe<A, B, C, D, E, F, G, H, I>(op1: OperatorFunction<T, A>, op2: OperatorFunction<A, B>, op3: OperatorFunction<B, C>, op4: OperatorFunction<C, D>, op5: OperatorFunction<D, E>, op6: OperatorFunction<E, F>, op7: OperatorFunction<F, G>, op8: OperatorFunction<G, H>, op9: OperatorFunction<H, I>, ...operations: OperatorFunction<any, any>[]): Observable<{}>;
toPromise<T>(this: Observable<T>): Promise<T>;
toPromise<T>(this: Observable<T>, PromiseCtor: typeof Promise): Promise<T>;
toPromise<T>(this: Observable<T>, PromiseCtor: PromiseConstructorLike): Promise<T>;
}
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