import { OperatorFunction, ObservableNotification, ValueFromNotification } from '../types';
/**
* Converts an Observable of {@link ObservableNotification} objects into the emissions
* that they represent.
*
* Unwraps {@link ObservableNotification} objects as actual `next`,
* `error` and `complete` emissions. The opposite of {@link materialize}.
*
* 
*
* `dematerialize` is assumed to operate an Observable that only emits
* {@link ObservableNotification} objects as `next` emissions, and does not emit any
* `error`. Such Observable is the output of a `materialize` operation. Those
* notifications are then unwrapped using the metadata they contain, and emitted
* as `next`, `error`, and `complete` on the output Observable.
*
* Use this operator in conjunction with {@link materialize}.
*
* ## Example
*
* Convert an Observable of Notifications to an actual Observable
*
* ```ts
* import { of } from 'rxjs';
* import { dematerialize } from 'rxjs/operators';
*
* const notifA = { kind: 'N', value: 'A' };
* const notifB = { kind: 'N', value: 'B' };
* const notifE = { kind: 'E', error: new TypeError('x.toUpperCase is not a function') }
*
* const materialized = of(notifA, notifB, notifE);
*
* const upperCase = materialized.pipe(dematerialize());
* upperCase.subscribe({
* next: x => console.log(x),
* error: e => console.error(e)
* });
*
* // Results in:
* // A
* // B
* // TypeError: x.toUpperCase is not a function
* ```
* @see {@link materialize}
*
* @return A function that returns an Observable that emits items and
* notifications embedded in Notification objects emitted by the source
* Observable.
*/
export declare function dematerialize>(): OperatorFunction>;
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