Lint

langgraph/graph/state.py

@@ -122,3 +122,4 @@ def _is_field_binop(typ: Type[Any]) -> Optional[BinaryOperatorAggregate]:
                 ]
             ):
                 return BinaryOperatorAggregate(typ, meta[0])
+    return None

langgraph/pregel/read.py

@@ -104,7 +104,7 @@ class ChannelInvoke(RunnableBindingBase):
             when=when,
             bound=bound or default_bound,
             kwargs=kwargs or {},
-            config=merge_configs(config, {"tags": tags}),
+            config=merge_configs(config, {"tags": tags or []}),
             **other_kwargs,
         )
 

tests/test_pregel.py

@@ -811,7 +811,7 @@ def test_conditional_graph_state() -> None:
         ]
     )
 
-    def agent_parser(input: str) -> Union[AgentAction, AgentFinish]:
+    def agent_parser(input: str) -> dict[str, Union[AgentAction, AgentFinish]]:
         if input.startswith("finish"):
             _, answer = input.split(":")
             return {

tests/test_pregel_async.py

@@ -865,7 +865,7 @@ async def test_conditional_graph_state() -> None:
         ]
     )
 
-    def agent_parser(input: str) -> Union[AgentAction, AgentFinish]:
+    def agent_parser(input: str) -> dict[str, Union[AgentAction, AgentFinish]]:
         if input.startswith("finish"):
             _, answer = input.split(":")
             return {