docs: public ServiceCall<Void> addAudio(AddAudioOptions addAudioOptions) {
      Validator.notNull(addAudioOptions, "addAudioOptions cannot be null");
      String[] pathSegments = { "v1/acoustic_customizations", "audio" };
      String[] pathParameters = { addAudioOptions.customizationId(), addAudioOptions.audioName() };
      RequestBuilder builder = RequestBuilder.post(RequestBuilder.constructHttpUrl(getEndPoint(), pathSegments,
          pathParameters));
      Map<String, String> sdkHeaders = SdkCommon.getSdkHeaders("speech_to_text", "v1", "addAudio");
      for (Entry<String, String> header : sdkHeaders.entrySet()) {
        builder.header(header.getKey(), header.getValue());
      }
      builder.header("Accept", "application/json");
      if (addAudioOptions.containedContentType() != null) {
        builder.header("Contained-Content-Type", addAudioOptions.containedContentType());
      }
      if (addAudioOptions.contentType() != null) {
        builder.header("Content-Type", addAudioOptions.contentType());
      }
      if (addAudioOptions.allowOverwrite() != null) {
        builder.query("allow_overwrite", String.valueOf(addAudioOptions.allowOverwrite()));
      }
      builder.bodyContent(addAudioOptions.contentType(), null, null, addAudioOptions.audioResource());
      return createServiceCall(builder.build(), ResponseConverterUtils.getVoid());
    }