docs: public ServiceCall<LanguageModel> createLanguageModel(CreateLanguageModelOptions createLanguageModelOptions) {
      Validator.notNull(createLanguageModelOptions, "createLanguageModelOptions cannot be null");
      String[] pathSegments = { "v1/customizations" };
      RequestBuilder builder = RequestBuilder.post(RequestBuilder.constructHttpUrl(getEndPoint(), pathSegments));
      Map<String, String> sdkHeaders = SdkCommon.getSdkHeaders("speech_to_text", "v1", "createLanguageModel");
      for (Entry<String, String> header : sdkHeaders.entrySet()) {
        builder.header(header.getKey(), header.getValue());
      }
      builder.header("Accept", "application/json");
      final JsonObject contentJson = new JsonObject();
      contentJson.addProperty("name", createLanguageModelOptions.name());
      contentJson.addProperty("base_model_name", createLanguageModelOptions.baseModelName());
      if (createLanguageModelOptions.dialect() != null) {
        contentJson.addProperty("dialect", createLanguageModelOptions.dialect());
      }
      if (createLanguageModelOptions.description() != null) {
        contentJson.addProperty("description", createLanguageModelOptions.description());
      }
      builder.bodyJson(contentJson);
      return createServiceCall(builder.build(), ResponseConverterUtils.getObject(LanguageModel.class));
    }