**For an audio-type resource,** the status of the resource: * `ok`: The service successfully
analyzed the audio data. The data can be used to train the custom model. * `being_processed`:
The service is still analyzing the audio data. The service cannot accept requests to add new
audio resources or to train the custom model until its analysis is complete. * `invalid`: The
audio data is not valid for training the custom model (possibly because it has the wrong format
or sampling rate, or because it is corrupted).