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Class: ChatSummaryMemoryBuffer

A ChatMemory is used to keep the state of back and forth chat messages

Extends​

Constructors​

new ChatSummaryMemoryBuffer()​

new ChatSummaryMemoryBuffer(options?): ChatSummaryMemoryBuffer

Parameters​

• options?: Partial<ChatSummaryMemoryBuffer>

Returns​

ChatSummaryMemoryBuffer

Overrides​

BaseMemory.constructor

Defined in​

packages/core/memory/dist/memory/index.d.ts:67

Properties​

llm​

llm: LLM<object, object>

Defined in​

packages/core/memory/dist/memory/index.d.ts:66

messages​

messages: ChatMessage[]

Defined in​

packages/core/memory/dist/memory/index.d.ts:64

summaryPrompt​

summaryPrompt: SummaryPrompt

Defined in​

packages/core/memory/dist/memory/index.d.ts:65

tokenizer​

tokenizer: Tokenizer

Tokenizer function that converts text to tokens, this is used to calculate the number of tokens in a message.

Defined in​

packages/core/memory/dist/memory/index.d.ts:62

tokensToSummarize​

tokensToSummarize: number

Defined in​

packages/core/memory/dist/memory/index.d.ts:63

Methods​

_tokenCountForMessages()​

protected _tokenCountForMessages(messages): number

Parameters​

• messages: ChatMessage[]

Returns​

number

Inherited from​

BaseMemory._tokenCountForMessages

Defined in​

packages/core/memory/dist/memory/index.d.ts:32

getAllMessages()​

getAllMessages(): Promise<ChatMessage[]>

Retrieves all messages stored in the memory.

Returns​

Promise<ChatMessage[]>

An array of all chat messages, either synchronously or as a Promise.

Overrides​

BaseMemory.getAllMessages

Defined in​

packages/core/memory/dist/memory/index.d.ts:82

getLastSummary()​

getLastSummary(): null | ChatMessage

Returns​

null | ChatMessage

Defined in​

packages/core/memory/dist/memory/index.d.ts:70

getMessages()​

getMessages(transientMessages?): Promise<ChatMessage[]>

Retrieves messages from the memory, optionally including transient messages. Compared to getAllMessages, this method a) allows for transient messages to be included in the retrieval and b) may return a subset of the total messages by applying a token limit.

Parameters​

• transientMessages?: ChatMessage[]

Optional array of temporary messages to be included in the retrieval. These messages are not stored in the memory but are considered for the current interaction.

Returns​

Promise<ChatMessage[]>

An array of chat messages, either synchronously or as a Promise.

Overrides​

BaseMemory.getMessages

Defined in​

packages/core/memory/dist/memory/index.d.ts:81

put()​

put(message): void

Adds a new message to the memory.

Parameters​

• message: ChatMessage

Returns​

void

Overrides​

BaseMemory.put

Defined in​

packages/core/memory/dist/memory/index.d.ts:83

reset()​

reset(): void

Clears all messages from the memory.

Returns​

void

Overrides​

BaseMemory.reset

Defined in​

packages/core/memory/dist/memory/index.d.ts:80