`langchain.memory.chat_message_histories.in_memory`.ChatMessageHistory¶

class langchain.memory.chat_message_histories.in_memory.ChatMessageHistory(*, messages: List[BaseMessage] = [])[source]¶

In memory implementation of chat message history.

Stores messages in an in memory list.

Create a new model by parsing and validating input data from keyword arguments.

Raises ValidationError if the input data cannot be parsed to form a valid model.

param messages: List[langchain.schema.messages.BaseMessage] = []¶: A list of Messages stored in-memory.

add_ai_message(message: str) → None¶

Convenience method for adding an AI message string to the store.

add_message(message: BaseMessage) → None[source]¶: Add a self-created message to the store

add_user_message(message: str) → None¶

Convenience method for adding a human message string to the store.

Examples using ChatMessageHistory¶