import { DestroyRef } from '@angular/core';
import { Injector } from '@angular/core';
import { MonoTypeOperatorFunction } from 'rxjs';
import { Observable } from 'rxjs';
import { OutputOptions } from '@angular/core';
import { OutputRef } from '@angular/core';
import { Signal } from '@angular/core';
import { Subscribable } from 'rxjs';
import { ValueEqualityFn } from '@angular/core/primitives/signals';

// @public
export function outputFromObservable<T>(observable: Observable<T>, opts?: OutputOptions): OutputRef<T>;

// @public
export function outputToObservable<T>(ref: OutputRef<T>): Observable<T>;

// @public
export function takeUntilDestroyed<T>(destroyRef?: DestroyRef): MonoTypeOperatorFunction<T>;

// @public
export function toObservable<T>(source: Signal<T>, options?: ToObservableOptions): Observable<T>;

// @public
export interface ToObservableOptions {
    injector?: Injector;
}

// @public (undocumented)
export function toSignal<T>(source: Observable<T> | Subscribable<T>): Signal<T | undefined>;

// @public (undocumented)
export function toSignal<T>(source: Observable<T> | Subscribable<T>, options: NoInfer<ToSignalOptions<T | undefined>> & {
    initialValue?: undefined;
    requireSync?: false;
}): Signal<T | undefined>;

// @public (undocumented)
export function toSignal<T>(source: Observable<T> | Subscribable<T>, options: NoInfer<ToSignalOptions<T | null>> & {
    initialValue?: null;
    requireSync?: false;
}): Signal<T | null>;

// @public (undocumented)
export function toSignal<T>(source: Observable<T> | Subscribable<T>, options: NoInfer<ToSignalOptions<T>> & {
    initialValue?: undefined;
    requireSync: true;
}): Signal<T>;

// @public (undocumented)
export function toSignal<T, const U extends T>(source: Observable<T> | Subscribable<T>, options: NoInfer<ToSignalOptions<T | U>> & {
    initialValue: U;
    requireSync?: false;
}): Signal<T | U>;

// @public
export interface ToSignalOptions<T> {
    equal?: ValueEqualityFn<T>;
    initialValue?: unknown;
    injector?: Injector;
    manualCleanup?: boolean;
    rejectErrors?: boolean;
    requireSync?: boolean;
}

// (No @packageDocumentation comment for this package)