docs: Update subgraphs.md (#5052)

* Update subgraphs.md

The state while defining the Subgraph is updated. Also an edge connecting START to the call_model node in the subgraph was created.

* Update docs/docs/concepts/subgraphs.md

* Update docs/docs/concepts/subgraphs.md

---------

Co-authored-by: Eugene Yurtsev <eugene@langchain.dev>
This commit is contained in:
Chitikela Veera Sai Charan Teja
2025-06-11 13:49:51 +00:00
committed by GitHub
co-authored by Eugene Yurtsev
parent 470b9a4b97
commit b8683ab67a
+3 -2
View File
@@ -59,8 +59,9 @@ The main question when adding subgraphs is how the parent graph and subgraph com
response = model.invoke(state["subgraph_messages"])
return {"subgraph_messages": response}
subgraph_builder = StateGraph(State)
subgraph_builder.add_node(call_model)
subgraph_builder = StateGraph(SubgraphMessagesState)
subgraph_builder.add_node("call_model_from_subgraph", call_model)
subgraph_builder.add_edge(START, "call_model_from_subgraph")
...
# highlight-next-line
subgraph = subgraph_builder.compile()