deleteFile method
Deletes the File.
Throws a http.ClientException if there were problems communicating with
the API service. Throws a StatusException if the API failed with a
Status message. Throws a ServiceException for any other failure.
Implementation
Future<void> deleteFile(DeleteFileRequest request) async {
final url = Uri.https(_host, '/v1beta/${request.name}');
await _client.delete(url);
}