@langchain/langgraph
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TypeScript
import { RunnableConfig } from "@langchain/core/runnables";
import { BaseStore } from "@langchain/langgraph-checkpoint";
import { LangGraphRunnableConfig } from "../runnable_types.js";
export declare function ensureLangGraphConfig(...configs: (LangGraphRunnableConfig | undefined)[]): RunnableConfig;
/**
* A helper utility function that returns the {@link BaseStore} that was set when the graph was initialized
*
* @returns a reference to the {@link BaseStore} that was set when the graph was initialized
*/
export declare function getStore(config?: LangGraphRunnableConfig): BaseStore | undefined;
/**
* A helper utility function that returns the {@link LangGraphRunnableConfig#writer} if "custom" stream mode is enabled, otherwise undefined.
*
* @returns a reference to the {@link LangGraphRunnableConfig#writer} if "custom" stream mode is enabled, otherwise undefined
*/
export declare function getWriter(config?: LangGraphRunnableConfig): ((chunk: unknown) => void) | undefined;
/**
* A helper utility function that returns the {@link LangGraphRunnableConfig} that was set when the graph was initialized.
*
* Note: This only works when running in an environment that supports node:async_hooks and AsyncLocalStorage. If you're running this in a
* web environment, access the LangGraphRunnableConfig from the node function directly.
*
* @returns the {@link LangGraphRunnableConfig} that was set when the graph was initialized
*/
export declare function getConfig(): LangGraphRunnableConfig;
/**
* A helper utility function that returns the input for the currently executing task
*
* @returns the input for the currently executing task
*/
export declare function getCurrentTaskInput<T = unknown>(config?: LangGraphRunnableConfig): T;
export declare function recastCheckpointNamespace(namespace: string): string;
export declare function getParentCheckpointNamespace(namespace: string): string;