Class: LlamaChatSession

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:424

See

Using LlamaChatSession tutorial

Constructors

Constructor

new LlamaChatSession(options: LlamaChatSessionOptions): LlamaChatSession;

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:440

Parameters

Parameter	Type
options	LlamaChatSessionOptions

Returns

LlamaChatSession

Properties

onDispose

readonly onDispose: EventRelay<void>;

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:438

Accessors

disposed

Get Signature

get disposed(): boolean;

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:497

Returns

boolean

---

chatWrapper

Get Signature

get chatWrapper(): ChatWrapper;

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:501

Returns

ChatWrapper

---

sequence

Get Signature

get sequence(): LlamaContextSequence;

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:508

Returns

LlamaContextSequence

---

context

Get Signature

get context(): LlamaContext;

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:515

Returns

LlamaContext

---

model

Get Signature

get model(): LlamaModel;

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:519

Returns

LlamaModel

Methods

dispose()

dispose(__namedParameters: {
  disposeSequence?: boolean;
}): void;

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:482

Parameters

Parameter	Type
__namedParameters	{ disposeSequence?: boolean; }
__namedParameters.disposeSequence?	boolean

Returns

void

---

prompt()

prompt<Functions>(prompt: string, options: LLamaChatPromptOptions<Functions>): Promise<string>;

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:523

Type Parameters

Type Parameter	Default type
Functions extends | undefined | ChatSessionModelFunctions	undefined

Parameters

Parameter	Type
prompt	string
options	LLamaChatPromptOptions<Functions>

Returns

Promise<string>

---

promptWithMeta()

promptWithMeta<Functions>(prompt: string, options?: LLamaChatPromptOptions<Functions>): Promise<
  | {
  response: (
     | string
     | ChatModelFunctionCall
    | ChatModelSegment)[];
  responseText: string;
  stopReason: "customStopTrigger";
  customStopTrigger: (string | Token)[];
  remainingGenerationAfterStop: undefined | string | Token[];
}
  | {
  customStopTrigger?: undefined;
  response: (
     | string
     | ChatModelFunctionCall
    | ChatModelSegment)[];
  responseText: string;
  stopReason:   | "abort"
     | "maxTokens"
     | "eogToken"
     | "stopGenerationTrigger"
     | "functionCalls";
  remainingGenerationAfterStop: undefined | string | Token[];
}>;

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:572

Type Parameters

Type Parameter	Default type
Functions extends | undefined | ChatSessionModelFunctions	undefined

Parameters

Parameter	Type	Description
prompt	string
options?	LLamaChatPromptOptions<Functions>

Returns

Promise< | { response: ( | string | ChatModelFunctionCall | ChatModelSegment)[]; responseText: string; stopReason: "customStopTrigger"; customStopTrigger: (string | Token)[]; remainingGenerationAfterStop: undefined | string | Token[]; } | { customStopTrigger?: undefined; response: ( | string | ChatModelFunctionCall | ChatModelSegment)[]; responseText: string; stopReason: | "abort" | "maxTokens" | "eogToken" | "stopGenerationTrigger" | "functionCalls"; remainingGenerationAfterStop: undefined | string | Token[]; }>

---

preloadPrompt()

preloadPrompt(prompt: string, options?: LLamaChatPreloadPromptOptions): Promise<void>;

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:862

Preload a user prompt into the current context sequence state to make later inference of the model response begin sooner and feel faster.

Note: Preloading a long user prompt can incur context shifts, so consider limiting the length of prompts you preload

Parameters

Parameter	Type	Description
prompt	string	the prompt to preload
options?	LLamaChatPreloadPromptOptions

Returns

Promise<void>

---

completePrompt()

completePrompt(prompt: string, options?: LLamaChatCompletePromptOptions): Promise<string>;

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:880

Preload a user prompt into the current context sequence state and generate a completion for it.

Note: Preloading a long user prompt and completing a user prompt with a high number of maxTokens can incur context shifts, so consider limiting the length of prompts you preload.

Also, it's recommended to limit the number of tokens generated to a reasonable amount by configuring maxTokens.

Parameters

Parameter	Type	Description
prompt	string	the prompt to preload
options?	LLamaChatCompletePromptOptions

Returns

Promise<string>

---

createPromptCompletionEngine()

createPromptCompletionEngine(options?: LLamaChatPromptCompletionEngineOptions): LlamaChatSessionPromptCompletionEngine;

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:893

Create a smart completion engine that caches the prompt completions and reuses them when the user prompt matches the beginning of the cached prompt or completion.

All completions are made and cache is used only for the current chat session state. You can create a single completion engine for an entire chat session.

Parameters

Parameter	Type
options?	LLamaChatPromptCompletionEngineOptions

Returns

LlamaChatSessionPromptCompletionEngine

---

completePromptWithMeta()

completePromptWithMeta(prompt: string, options?: LLamaChatCompletePromptOptions): Promise<
  | {
  completion: string;
  stopReason: "customStopTrigger";
  customStopTrigger: (string | Token)[];
  remainingGenerationAfterStop: undefined | string | Token[];
}
  | {
  customStopTrigger?: undefined;
  completion: string;
  stopReason:   | "abort"
     | "maxTokens"
     | "eogToken"
     | "stopGenerationTrigger"
     | "functionCalls";
  remainingGenerationAfterStop: undefined | string | Token[];
}>;

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:902

See completePrompt for more information.

Parameters

Parameter	Type	Description
prompt	string
options?	LLamaChatCompletePromptOptions

Returns

Promise< | { completion: string; stopReason: "customStopTrigger"; customStopTrigger: (string | Token)[]; remainingGenerationAfterStop: undefined | string | Token[]; } | { customStopTrigger?: undefined; completion: string; stopReason: | "abort" | "maxTokens" | "eogToken" | "stopGenerationTrigger" | "functionCalls"; remainingGenerationAfterStop: undefined | string | Token[]; }>

---

getChatHistory()

getChatHistory(): ChatHistoryItem[];

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:1130

Returns

ChatHistoryItem[]

---

getLastEvaluationContextWindow()

getLastEvaluationContextWindow(): null | ChatHistoryItem[];

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:1134

Returns

null | ChatHistoryItem[]

---

setChatHistory()

setChatHistory(chatHistory: ChatHistoryItem[]): void;

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:1141

Parameters

Parameter	Type
chatHistory	ChatHistoryItem[]

Returns

void

---

resetChatHistory()

resetChatHistory(): void;

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:1149

Clear the chat history and reset it to the initial state.

Returns

void