@java.lang.Override
    public com.google.cloud.speech.v2.DeleteCustomClassRequestOrBuilder
        getDeleteCustomClassRequestOrBuilder() {
      if ((requestCase_ == 15) && (deleteCustomClassRequestBuilder_ != null)) {
        return deleteCustomClassRequestBuilder_.getMessageOrBuilder();
      } else {
        if (requestCase_ == 15) {
          return (com.google.cloud.speech.v2.DeleteCustomClassRequest) request_;
        }
        return com.google.cloud.speech.v2.DeleteCustomClassRequest.getDefaultInstance();
      }
    }
<pre>
The DeleteCustomClassRequest that spawned the Operation.
</pre>

<code>.google.cloud.speech.v2.DeleteCustomClassRequest delete_custom_class_request = 15;
</code>
java-speech/proto-google-cloud-speech-v2/src/main/java/com/google/cloud/speech/v2/OperationMetadata.java