@langgraph-js/pro/dist/messages/index.d.ts

The Pro SDK for LangGraph - seamlessly integrate your AI agents with frontend interfaces and build complex AI workflows

import { BaseMessage, HumanMessage } from "@langchain/core/messages";
import { AIMessage, ContentBlock, ToolMessage } from "@langchain/core/messages";
export * from "./query.js";
/**
 * 获取最后一条人类发送的消息
 * @example
 * const lastHumanMessage = getLastHumanMessage(state.messages);
 * console.log(lastHumanMessage);
 */
export declare function getLastHumanMessage(messages: BaseMessage[]): HumanMessage | undefined;
export declare const getThreadId: (context: any) => string;
export declare const getToolCallId: (context: any) => string;
/**
 *  创建一对 toolCall 数据
 * @example
 * ```typescript
 * const [aiMessage, toolMessage] = createToolCall("toolName", { input: "input" }, "this is tool outputs");
 * ```
 */
export declare const createToolCall: (toolName: string, input: Record<string, any>, output?: string | (ContentBlock | ContentBlock.Text)[]) => readonly [AIMessage<import("@langchain/core/messages").MessageStructure>, ToolMessage<import("@langchain/core/messages").MessageStructure>];