import { SimpleChange, SimpleChanges, ɵComponentDef as ComponentDef } from '@angular/core';
import { ReplaySubject } from 'rxjs';
declare type Extra = boolean | SimpleChanges | SimpleChange;
export declare function lifecycleCreateSubjectIfNotExists(context: any, lifecycleName: string): ReplaySubject<Extra>;
export declare function lifecycleCreateHookIfNotExists(component: ComponentDef<any>, lifecycleName: string): void;
export declare function makeDecoratorFactorySimple(lifecycleName: string): PropertyDecorator;
export {};