@sap-ai-sdk/langchain/dist/openai/util.d.ts

SAP Cloud SDK for AI is the official Software Development Kit (SDK) for **SAP AI Core**, **SAP Generative AI Hub**, and **Orchestration Service**.

import { AIMessageChunk } from '@langchain/core/messages';
import type { AzureOpenAiFunctionObject, AzureOpenAiChatCompletionTool, AzureOpenAiCreateChatCompletionResponse } from '@sap-ai-sdk/foundation-models/internal.js';
import type { AzureOpenAiChatCompletionParameters, AzureOpenAiChatCompletionStreamChunkResponse } from '@sap-ai-sdk/foundation-models';
import type { BaseMessage } from '@langchain/core/messages';
import type { ChatResult } from '@langchain/core/outputs';
import type { AzureOpenAiChatClient } from './chat.js';
import type { AzureOpenAiChatCallOptions, ChatAzureOpenAIToolType } from './types.js';
import type { ToolDefinition } from '@langchain/core/language_models/base';
/**
 * Determines if the model is a reasoning model.
 * @param modelName - The name of the model.
 * @returns True if the model is a reasoning model, false otherwise.
 * @internal
 */
export declare function isReasoningModel(modelName: string): boolean;
/**
 * Maps a {@link ChatAzureOpenAIToolType} to {@link AzureOpenAiFunctionObject}.
 * @param tool - Base class for tools that accept input of any shape defined by a Zod schema.
 * @param strict - Whether to enforce strict mode for the function call.
 * @returns The OpenAI chat completion function.
 * @internal
 */
export declare function mapToolToOpenAiFunction(tool: ChatAzureOpenAIToolType, strict?: boolean): AzureOpenAiFunctionObject;
/**
 * Maps a LangChain {@link ChatAzureOpenAIToolType} to {@link AzureOpenAiChatCompletionTool}.
 * @param tool - Base class for tools that accept input of any shape defined by a Zod schema.
 * @param strict - Whether to enforce strict mode for the function call.
 * @returns The OpenAI chat completion tool.
 * @internal
 */
export declare function mapToolToOpenAiTool(tool: ChatAzureOpenAIToolType, strict?: boolean): AzureOpenAiChatCompletionTool;
/**
 * Maps {@link AzureOpenAiCreateChatCompletionResponse} to LangChain's {@link ChatResult}.
 * @param completionResponse - The {@link AzureOpenAiCreateChatCompletionResponse} response.
 * @returns The LangChain {@link ChatResult}
 * @internal
 */
export declare function mapOutputToChatResult(completionResponse: AzureOpenAiCreateChatCompletionResponse): ChatResult;
/**
 * Maps LangChain's input interface to the AI SDK client's input interface
 * @param client The LangChain Azure OpenAI client
 * @param options The {@link AzureOpenAiChatCallOptions}
 * @param messages The messages to be send
 * @returns An AI SDK compatibile request
 * @internal
 */
export declare function mapLangChainToAiClient(client: AzureOpenAiChatClient, messages: BaseMessage[], options?: AzureOpenAiChatCallOptions & {
    promptIndex?: number;
}): AzureOpenAiChatCompletionParameters;
/**
 * Converts Azure OpenAI stream chunk to a LangChain message chunk.
 * @param chunk - The Azure OpenAI stream chunk.
 * @returns An {@link AIMessageChunk}
 * @internal
 */
export declare function mapAzureOpenAiChunkToLangChainMessageChunk(chunk: AzureOpenAiChatCompletionStreamChunkResponse): AIMessageChunk;
/**
 * @internal
 */
export declare function isToolDefinitionLike(tool: ChatAzureOpenAIToolType): tool is AzureOpenAiChatCompletionTool | ToolDefinition;
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