public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
    return LlmUtilityServiceStubSettings.defaultExecutorProviderBuilder();
  }
Returns a builder for the default ExecutorProvider for this service.
java-vertexai/google-cloud-vertexai/src/main/java/com/google/cloud/vertexai/api/LlmUtilityServiceSettings.java