Auto-finalize ResponseStream on iteration completion - #4478

3. **[03a_multi_turn.py](./01-get-started/03a_multi_turn.py)** — Multi-turn conversations with `AgentSession`
3b. **[03b_multi_turn_streaming.py](./01-get-started/03b_multi_turn_streaming.py)** — Multi-turn streaming conversations

async def main() -> None:
    # 1. Create the client and agent.
    credential = AzureCliCredential()
    client = AzureOpenAIResponsesClient(
        project_endpoint=os.environ["AZURE_AI_PROJECT_ENDPOINT"],
        deployment_name=os.environ["AZURE_OPENAI_RESPONSES_DEPLOYMENT_NAME"],
        credential=credential,
    )

    agent = client.as_agent(
        name="ConversationAgent",
        instructions="You are a friendly assistant. Keep your answers brief.",
    )

    # 2. Create a session to maintain conversation history.
    session = agent.create_session()

    # 3. First turn — stream the response, then finalize to save history.
    print("Agent: ", end="")
    stream = agent.run("My name is Alice and I love hiking.", session=session, stream=True)
    async for chunk in stream:
        if chunk.text:
            print(chunk.text, end="", flush=True)
    await stream.get_final_response()  # Persists messages to the session
    print("\n")

    # 4. Second turn — the agent remembers context from the first turn.
    print("Agent: ", end="")
    stream = agent.run("What do you remember about me?", session=session, stream=True)
    async for chunk in stream:
        if chunk.text:
            print(chunk.text, end="", flush=True)
    await stream.get_final_response()

    print("Agent: ", end="")
    stream = agent.run("My name is Alice and I love hiking.", session=session, stream=True)
    async for chunk in stream:
        if chunk.text:
            print(chunk.text, end="", flush=True)
    await stream.get_final_response()  # Persists messages to the session
    print("\n")

    # 4. Second turn — the agent remembers context from the first turn.
    print("Agent: ", end="")
    stream = agent.run("What do you remember about me?", session=session, stream=True)