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import { OperatorFunction } from '../types';
/**
* Ignores all items emitted by the source Observable and only passes calls of `complete` or `error`.
*
* ![](ignoreElements.png)
*
* ## Examples
* ### Ignores emitted values, reacts to observable's completion.
* ```ts
* import { of } from 'rxjs';
* import { ignoreElements } from 'rxjs/operators';
*
* of('you', 'talking', 'to', 'me').pipe(
* ignoreElements(),
* )
* .subscribe(
* word => console.log(word),
* err => console.log('error:', err),
* () => console.log('the end'),
* );
* // result:
* // 'the end'
* ```
* @return {Observable} An empty Observable that only calls `complete`
* or `error`, based on which one is called by the source Observable.
* @method ignoreElements
* @owner Observable
*/
export declare function ignoreElements(): OperatorFunction<any, never>;