The Google Cloud Storage bucket builder interface.

Access via `functions.storage.bucket()`.

**Signature:**

    export declare class BucketBuilder 

## Methods

| Method | Modifiers | Description |
|---|---|---|
| [object()](https://firebase.google.com/docs/reference/functions/firebase-functions.storage.bucketbuilder#storagebucketbuilderobject) |   | Event handler which fires every time a Google Cloud Storage change occurs. |

## storage.BucketBuilder.object()

Event handler which fires every time a Google Cloud Storage change occurs.

**Signature:**

    object(): ObjectBuilder;

**Returns:**

[ObjectBuilder](https://firebase.google.com/docs/reference/functions/firebase-functions.storage.objectbuilder#storageobjectbuilder_class)

Storage object builder interface scoped to the specified storage bucket.