Home
About
Blog
Products
Forum
Support
Contact
Sunbelt Computer Software
PL/B Language Development and Support
Home
About
Blog
Products
Forum
Support
Contact
Handler | langgraph_sdk | LangChain Reference
LangChain Reference home page
Search...
⌘K
Ask AI
GitHub
Main Docs
Deep Agents
LangChain
LangGraph
Integrations
LangSmith
⌘I
Chat LangChain
What can I help with?
Enter
to send
·
Shift+Enter
new line
What are deep agents and how do I get started?
How do I build a React app around a Deep Agent?
How do I stream subagent output to my frontend with useStream?
Menu
Navigation
Projects
LangGraph
LangGraph Checkpoint
LangGraph Store
Checkpoint Postgres
Store Postgres
Checkpoint SQLite
LangGraph Prebuilt
LangGraph CLI
LangGraph SDK
LangGraph Supervisor
LangGraph Swarm
Language
Python
JavaScript
Theme
Light
Dark
Python
langgraph-sdk
auth
types
Handler
Attribute
v0.4.8 (latest)
●
Since v0.4
Handler
Copy
Handler
=
Callable
[
.
.
.
,
Awaitable
[
HandlerResult
]
]
View source on GitHub
Version History