Javadoc
The Multi-Object Delete operation enables you to delete multiple objects from a bucket using a
single HTTP request. If you know the object keys that you want to delete, then this operation
provides a suitable alternative to sending individual delete requests (see DELETE Object),
reducing per-request overhead.
The Multi-Object Delete request contains a set of up to 1000 keys that you want to delete.
If a key does not exist is considered to be deleted.
The Multi-Object Delete operation supports two modes for the response; verbose and quiet.
By default, the operation uses verbose mode in which the response includes the result of
deletion of each key in your request.