Chat Message History

The primary interface with language models at the moment in through a chat interface. The ChatMessageHistory class is responsible for remembering all previous chat interactions. These can then be passed directly back into the model, summarized in some way, or some combination.

ChatMessageHistory exposes two methods and one attribute. The two methods it exposes are add_user_message and add_ai_message, used for storing messages from users and responses from the AI accordingly. The attribute it exposes is a messages attribute, used for accessing all previous messages.