Class: LlamaChatSession

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:513

See

Using LlamaChatSession tutorial

Constructors

Constructor

new LlamaChatSession(options: LlamaChatSessionOptions): LlamaChatSession;

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:529

Parameters

Parameter	Type
options	LlamaChatSessionOptions

Returns

LlamaChatSession

Properties

onDispose

readonly onDispose: EventRelay<void>;

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:527

Accessors

disposed

Get Signature

get disposed(): boolean;

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:586

Returns

boolean

---

chatWrapper

Get Signature

get chatWrapper(): ChatWrapper;

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:590

Returns

ChatWrapper

---

sequence

Get Signature

get sequence(): LlamaContextSequence;

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:597

Returns

LlamaContextSequence

---

context

Get Signature

get context(): LlamaContext;

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:604

Returns

LlamaContext

---

model

Get Signature

get model(): LlamaModel;

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:608

Returns

LlamaModel

Methods

dispose()

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

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:571

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:612

Type Parameters

Type Parameter	Default type
Functions extends | ChatSessionModelFunctions | undefined	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: string | Token[] | undefined;
}
  | {
  customStopTrigger?: undefined;
  response: (
     | string
     | ChatModelFunctionCall
    | ChatModelSegment)[];
  responseText: string;
  stopReason:   | "abort"
     | "maxTokens"
     | "eogToken"
     | "stopGenerationTrigger"
     | "functionCalls";
  remainingGenerationAfterStop: string | Token[] | undefined;
}>;

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:663

Type Parameters

Type Parameter	Default type
Functions extends | ChatSessionModelFunctions | undefined	undefined

Parameters

Parameter	Type	Description
prompt	string	-
options?	LLamaChatPromptOptions<Functions>	-

Returns

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

---

preloadPrompt()

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

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:957

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:975

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:988

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

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:997

See completePrompt for more information.

Parameters

Parameter	Type	Description
prompt	string	-
options?	LLamaChatCompletePromptOptions	-

Returns

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

---

getChatHistory()

getChatHistory(): ChatHistoryItem[];

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:1231

Returns

ChatHistoryItem[]

---

getLastEvaluationContextWindow()

getLastEvaluationContextWindow(): ChatHistoryItem[] | null;

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:1235

Returns

ChatHistoryItem[] | null

---

setChatHistory()

setChatHistory(chatHistory: ChatHistoryItem[]): void;

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:1242

Parameters

Parameter	Type
chatHistory	ChatHistoryItem[]

Returns

void

---

resetChatHistory()

resetChatHistory(): void;

Defined in: evaluator/LlamaChatSession/LlamaChatSession.ts:1250

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

Returns

void