Chatbot example with Chat History

[JacobGoldenArt]

Hi, I've just been going through the docs and the framework looks really nice. I've read the docs on @chatprompt decorator and I was looking for a simple example that shows a good was of feeding the chat history back to the prompt. Would one use the AnyMessage to do this. Similar to this example?

from magentic import AnyMessage
from pydantic import TypeAdapter


messages = [
    {"role": "system", "content": "Hello"},
    {"role": "user", "content": "Hello"},
    {"role": "assistant", "content": "Hello"},
    {"role": "tool", "content": 3, "tool_call_id": "unique_id"},
]
TypeAdapter(list[AnyMessage]).validate_python(messages)
# [SystemMessage('Hello'),
#  UserMessage('Hello'),
#  AssistantMessage[Any]('Hello'),
#  ToolResultMessage[Any](3, self.tool_call_id='unique_id')]

[jackmpcollins]

Hi @JacobGoldenArt You could try using the Chat class to achieve this. The @chatprompt decorator is best for a one-off query, while the Chat class is for managing an ongoing thread of messages. See comment #389 (comment) (and issue to document Chat here #317). Please let me know if that works for you, thanks.

[jackmpcollins]

Chat class is now documented: https://magentic.dev/chat