import { Observable } from './Observable';
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import { Subscription } from './Subscription';
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/**
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* Note: This will add Symbol.observable globally for all TypeScript users,
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* however, we are no longer polyfilling Symbol.observable
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*/
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declare global {
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interface SymbolConstructor {
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readonly observable: symbol;
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}
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}
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/** OPERATOR INTERFACES */
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export interface UnaryFunction<T, R> {
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(source: T): R;
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}
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export interface OperatorFunction<T, R> extends UnaryFunction<Observable<T>, Observable<R>> {
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}
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export declare type FactoryOrValue<T> = T | (() => T);
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export interface MonoTypeOperatorFunction<T> extends OperatorFunction<T, T> {
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}
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export interface Timestamp<T> {
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value: T;
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timestamp: number;
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}
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export interface TimeInterval<T> {
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value: T;
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interval: number;
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}
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/** SUBSCRIPTION INTERFACES */
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export interface Unsubscribable {
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unsubscribe(): void;
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}
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export declare type TeardownLogic = Unsubscribable | Function | void;
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export interface SubscriptionLike extends Unsubscribable {
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unsubscribe(): void;
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readonly closed: boolean;
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}
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export declare type SubscribableOrPromise<T> = Subscribable<T> | Subscribable<never> | PromiseLike<T> | InteropObservable<T>;
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/** OBSERVABLE INTERFACES */
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export interface Subscribable<T> {
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subscribe(observer?: PartialObserver<T>): Unsubscribable;
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/** @deprecated Use an observer instead of a complete callback */
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subscribe(next: null | undefined, error: null | undefined, complete: () => void): Unsubscribable;
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/** @deprecated Use an observer instead of an error callback */
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subscribe(next: null | undefined, error: (error: any) => void, complete?: () => void): Unsubscribable;
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/** @deprecated Use an observer instead of a complete callback */
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subscribe(next: (value: T) => void, error: null | undefined, complete: () => void): Unsubscribable;
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subscribe(next?: (value: T) => void, error?: (error: any) => void, complete?: () => void): Unsubscribable;
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}
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export declare type ObservableInput<T> = SubscribableOrPromise<T> | ArrayLike<T> | Iterable<T>;
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/** @deprecated use {@link InteropObservable } */
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export declare type ObservableLike<T> = InteropObservable<T>;
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export declare type InteropObservable<T> = {
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[Symbol.observable]: () => Subscribable<T>;
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};
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/** OBSERVER INTERFACES */
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export interface NextObserver<T> {
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closed?: boolean;
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next: (value: T) => void;
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error?: (err: any) => void;
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complete?: () => void;
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}
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export interface ErrorObserver<T> {
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closed?: boolean;
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next?: (value: T) => void;
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error: (err: any) => void;
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complete?: () => void;
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}
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export interface CompletionObserver<T> {
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closed?: boolean;
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next?: (value: T) => void;
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error?: (err: any) => void;
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complete: () => void;
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}
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export declare type PartialObserver<T> = NextObserver<T> | ErrorObserver<T> | CompletionObserver<T>;
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export interface Observer<T> {
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closed?: boolean;
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next: (value: T) => void;
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error: (err: any) => void;
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complete: () => void;
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}
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/** SCHEDULER INTERFACES */
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export interface SchedulerLike {
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now(): number;
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schedule<T>(work: (this: SchedulerAction<T>, state?: T) => void, delay?: number, state?: T): Subscription;
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}
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export interface SchedulerAction<T> extends Subscription {
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schedule(state?: T, delay?: number): Subscription;
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}
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export declare type ObservedValueOf<O> = O extends ObservableInput<infer T> ? T : never;
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export declare type ObservedValuesFromArray<X> = X extends Array<ObservableInput<infer T>> ? T : never;
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