How to set the default system message for OllamaChatModel?

[LiveNathan]

How do I do something like this:

@Bean
    public ChatClient chatClient(ChatClient.Builder builder) {
        return builder.defaultSystem("You are a helpful ...")
                .build();
    }

But for Ollama?

public class InterviewOllamaAdapter implements InterviewChatClient {
    private final OllamaChatModel chatModel;

    public InterviewOllamaAdapter(OllamaChatModel chatModel) {
        this.chatModel = chatModel;
    }

    @Override
    public String chat(String chatMessage) {
        return chatModel.call(chatMessage);
    }
}

[LiveNathan]

Ha! Never mind. I didn't realize that all I had to do was use the ChatClient instead of the OllamaChatModel.