import { DestroyRef, type Injector } from '@angular/core';
import { ReplaySubject } from 'rxjs';
/**
 * Injects the `DestroyRef` service and returns a `ReplaySubject` that emits
 * when the component is destroyed.
 *
 * @throws {Error} If no `DestroyRef` is found.
 * @returns {ReplaySubject<void>} A `ReplaySubject` that emits when the component is destroyed.
 *
 * @example
 * // In your component:
 * export class MyComponent {
 *   private destroy$ = injectDestroy();
 *
 *   getData() {
 *     return this.service.getData()
 *       .pipe(takeUntil(this.destroy$))
 *       .subscribe(data => { ... });
 *   }
 * }
 */
export declare const injectDestroy: (injector?: Injector) => ReplaySubject<void> & {
    onDestroy: DestroyRef["onDestroy"];
};