public com.google.storagetransfer.v1.proto.TransferTypes.NotificationConfig
          getNotificationConfig() {
        if (notificationConfigBuilder_ == null) {
          return notificationConfig_ == null
              ? com.google.storagetransfer.v1.proto.TransferTypes.NotificationConfig
                  .getDefaultInstance()
              : notificationConfig_;
        } else {
          return notificationConfigBuilder_.getMessage();
        }
      }
<pre>
Notification configuration.
</pre>

<code>.google.storagetransfer.v1.NotificationConfig notification_config = 11;</code>

@return The notificationConfig.
java-storage-transfer/proto-google-cloud-storage-transfer-v1/src/main/java/com/google/storagetransfer/v1/proto/TransferTypes.java