Public interface of the Firebase Installations SDK.

**Signature:**

    export interface Installations 

## Properties

| Property | Type | Description |
|---|---|---|
| [app](https://firebase.google.com/docs/reference/js/installations.installations#installationsapp) | [FirebaseApp](https://firebase.google.com/docs/reference/js/app.firebaseapp#firebaseapp_interface) | The [FirebaseApp](https://firebase.google.com/docs/reference/js/app.firebaseapp#firebaseapp_interface) this `Installations` instance is associated with. |

## Installations.app

The [FirebaseApp](https://firebase.google.com/docs/reference/js/app.firebaseapp#firebaseapp_interface) this `Installations` instance is associated with.

**Signature:**

    app: FirebaseApp;