code: public ServiceCall<Void> deleteLanguageModel(DeleteLanguageModelOptions deleteLanguageModelOptions) {
      Validator.notNull(deleteLanguageModelOptions, "deleteLanguageModelOptions cannot be null");
      String[] pathSegments = { "v1/customizations" };
      String[] pathParameters = { deleteLanguageModelOptions.customizationId() };
      RequestBuilder builder = RequestBuilder.delete(RequestBuilder.constructHttpUrl(getEndPoint(), pathSegments,
          pathParameters));
      Map<String, String> sdkHeaders = SdkCommon.getSdkHeaders("speech_to_text", "v1", "deleteLanguageModel");
      for (Entry<String, String> header : sdkHeaders.entrySet()) {
        builder.header(header.getKey(), header.getValue());
      }
      builder.header("Accept", "application/json");
      return createServiceCall(builder.build(), ResponseConverterUtils.getVoid());
    }
docs: Delete a custom language model.
  
  Deletes an existing custom language model. The custom model cannot be deleted if another request, such as adding a
  corpus or grammar to the model, is currently being processed. You must use credentials for the instance of the
  service that owns a model to delete it.
  
  **See also:** [Deleting a custom language
  model](https://cloud.ibm.com/docs/services/speech-to-text/language-models.html#deleteModel-language).
  
  @param deleteLanguageModelOptions the {@link DeleteLanguageModelOptions} containing the options for the call
  @return a {@link ServiceCall} with a response type of Void