Optional fields: BufferWindowMemoryInputOptional inputOptional outputMethod to load the memory variables. Retrieves the chat messages from the history, slices the last 'k' messages, and stores them in the memory under the memoryKey. If the returnMessages property is set to true, the method returns the messages as they are. Otherwise, it returns a string representation of the messages.
InputValues object.
Promise that resolves to a MemoryVariables object.
Method to add user and AI messages to the chat history in sequence.
The input values from the user.
The output values from the AI.
Promise that resolves when the context has been saved.
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Class for managing and storing previous chat messages. It extends the BaseChatMemory class and implements the BufferWindowMemoryInput interface. This class is stateful and stores messages in a buffer. When called in a chain, it returns all of the messages it has stored.