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@ -940,7 +940,7 @@ with that hero's data values.
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A refresh button clears the hero list and the current selected hero before refetching the heroes.
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Notice that `hero-list.component.ts` imports `Observable` and the `finally` operator, while `hero.service.ts` imports `Observable`, `of` and the `delay` operator from `rxjs`.
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Notice that `hero-list.component.ts` imports `Observable` and the `finalize` operator, while `hero.service.ts` imports `Observable`, `of`, and the `delay` operator from `rxjs`.
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The remaining `HeroListComponent` and `HeroService` implementation details are beyond the scope of this tutorial.
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However, the techniques involved are covered elsewhere in the documentation, including the _Tour of Heroes_
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