@langchain/core/dist/messages/index.js

Core LangChain.js abstractions and schemas

export * from "./ai.js";
export * from "./base.js";
export * from "./chat.js";
export * from "./function.js";
export * from "./human.js";
export * from "./system.js";
export * from "./utils.js";
export * from "./transformers.js";
export * from "./modifier.js";
// TODO: Use a star export when we deprecate the
// existing "ToolCall" type in "base.js".
export { ToolMessage, ToolMessageChunk, isToolMessage, isToolMessageChunk, } from "./tool.js";