@langchain/langgraph
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text/typescript
import { StateGraph } from "./state.cjs";
import { Messages } from "./messages_reducer.cjs";
import { RunnableConfig } from "@langchain/core/runnables";
import * as _langchain_core_messages0 from "@langchain/core/messages";
import { BaseMessage, BaseMessageLike } from "@langchain/core/messages";
//#region src/graph/message.d.ts
/** @ignore */
declare class MessageGraph extends StateGraph<BaseMessage[], BaseMessage[], Messages> {
constructor();
}
/**
* Manually push a message to a message stream.
*
* This is useful when you need to push a manually created message before the node
* has finished executing.
*
* When a message is pushed, it will be automatically persisted to the state after the node has finished executing.
* To disable persisting, set `options.stateKey` to `null`.
*
* @param message The message to push. The message must have an ID set, otherwise an error will be thrown.
* @param options RunnableConfig / Runtime coming from node context.
*/
declare function pushMessage(message: BaseMessage | BaseMessageLike, options?: RunnableConfig & {
/**
* The key of the state to push the message to. Set to `null` to avoid persisting.
* @default "messages"
*/
stateKey?: string | null;
}): BaseMessage<_langchain_core_messages0.MessageStructure<_langchain_core_messages0.MessageToolSet>, _langchain_core_messages0.MessageType>;
//#endregion
export { MessageGraph, pushMessage };
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