Client state management

[AI091]

Does the http client manage its state automatically , or do I have to update messages based on every event I receive ?.
So for event like TEXT_MESSAGE_START, TEXT_MESSAGE_CONTENT, do I need to intercept them and add them manually to agent.messages ?

// Assume 'agent' is an initialized HttpAgent instance
// agent.messages = [{ role: 'user', content: 'Hi' }]; // State before run

agent.run(runInput).subscribe({
  next: (event) => {
    // if (event.type === EventType.TEXT_MESSAGE_START && event.role === 'assistant') {
    //   // PROBLEM: Is agent.messages now [{user}, {assistant_placeholder}] here?
    // }
    // if (event.type === EventType.TEXT_MESSAGE_CONTENT && event.role === 'assistant') {
    //   // PROBLEM: Is agent.messages[{assistant_idx}].content updated here?
    // }
  },
  complete: () => {
    // After backend sent full assistant reply "Hello there":
    // EXPECTED: agent.messages = [{user}, {assistant, content:"Hello there"}]
    // OBSERVED (potentially): agent.messages = [{user, content:"Hi"}] // Assistant reply missing
    console.log(agent.messages); // Does this log the full conversation including assistant's reply?
  }
});

From my testing I needed to handle everything manually but I feel like I am missing how to do it properly . I also had to use the run method, the runAgent one mentioned in the docs doesn't return an observable. Would appreciate any clarity on this