LangChain Reference home pageLangChain ReferenceLangChain Reference
  • GitHub
  • Main Docs
Deep Agents
LangChain
LangGraph
Integrations
LangSmith
LangChain
  • Browser
  • Universal
  • Hub
  • Node
  • Load
  • Serializable
  • Encoder Backed
  • File System
  • In Memory
  • Tools
LangChain Core
  • Agents
  • Caches
  • Base
  • Dispatch
  • Web
  • Manager
  • Promises
  • Chat History
  • Context
  • Base
  • Langsmith
  • Documents
  • Embeddings
  • Errors
  • Example Selectors
  • Indexing
  • Base
  • Chat Models
  • Compat
  • Event
  • Llms
  • Openai Completions Stream
  • Profile
  • Stream
  • Structured Output
  • Load
  • Serializable
  • Memory
  • Messages
  • Tool
  • Output Parsers
  • Openai Functions
  • Openai Tools
  • Outputs
  • Prompt Values
  • Prompts
  • Retrievers
  • Document Compressors
  • Runnables
  • Graph
  • Singletons
  • Stores
  • Structured Query
  • Testing
  • Tools
  • Base
  • Console
  • Log Stream
  • Run Collector
  • Tracer Langchain
  • Stream
  • Async Caller
  • Chunk Array
  • Context
  • Env
  • Event Source Parse
  • Format
  • Function Calling
  • Gateway
  • Hash
  • Json Patch
  • Json Schema
  • Math
  • Ssrf
  • Standard Schema
  • Stream
  • Testing
  • Tiktoken
  • Types
  • Uuid
  • Vectorstores
Text Splitters
MCP Adapters
⌘I

LangChain Assistant

Ask a question to get started

Enter to send•Shift+Enter new line

Menu

LangChain
BrowserUniversalHubNodeLoadSerializableEncoder BackedFile SystemIn MemoryTools
LangChain Core
AgentsCachesBaseDispatchWebManagerPromisesChat HistoryContextBaseLangsmithDocumentsEmbeddingsErrorsExample SelectorsIndexingBaseChat ModelsCompatEventLlmsOpenai Completions StreamProfileStreamStructured OutputLoadSerializableMemoryMessagesToolOutput ParsersOpenai FunctionsOpenai ToolsOutputsPrompt ValuesPromptsRetrieversDocument CompressorsRunnablesGraphSingletonsStoresStructured QueryTestingToolsBaseConsoleLog StreamRun CollectorTracer LangchainStreamAsync CallerChunk ArrayContextEnvEvent Source ParseFormatFunction CallingGatewayHashJson PatchJson SchemaMathSsrfStandard SchemaStreamTestingTiktokenTypesUuidVectorstores
Text Splitters
MCP Adapters
Language
Theme
JavaScript@langchain/coretracerslog_streamRunState
Typeā—Since v1.0

RunState

Copy
RunState

Properties

property
final_output: any

Final output of the run, usually the result of aggregating streamed_output. Only available after the run has finished successfully.

property
id: string

ID of the sub-run.

property
logs: Record<string, LogEntry>

List of sub-runs contained in this run, if any, in the order they were started. If filters were supplied, this list will contain only the runs that matched the filters.

property
name: string

Name of the object being run.

property
streamed_output: any[]

List of output chunks streamed by Runnable.stream()

property
type: string

Type of the object being run, eg. prompt, chain, llm, etc.

View source on GitHub