I just updated langgraph. When using astream_events, how do I get the final graph state after the graph is done executing?

[ldorigo]

I was previously on version 0.30 and I could get the final graph state for a StateGraph by doing:

async for event in parent_runnable.astream_events(version="v1"):          
      if event["event"] == "on_chain_end" and event["name"] == "langgraph_graph":
            output = event["data"]["output"]
            if not output:
                final_state = output.get("__end__", {})

However, now that I updated to the last version, it seems like the final event is triggered by the penultimate node (not the end node) and the final state is no longer available? How can I access the final state when the graph is done executing?

[nfcampos]

You can use stream_mode=values to get a stream of state values at the end of each step. The last of these will be the final state.

async for event in parent_runnable.astream_events(version="v1", stream_mode="values"):          
    if event["event"] == "on_chain_end" and event["name"] == "langgraph_graph":
        final_state = event["data"]["output"]