linting for 3.12

libs/langgraph/langgraph/pregel/read.py

@@ -239,12 +239,12 @@ class PregelNode(Runnable):
         )
 
     def join(self, channels: Sequence[str]) -> PregelNode:
-        assert isinstance(channels, list) or isinstance(channels, tuple), (
-            "channels must be a list or tuple"
-        )
-        assert isinstance(self.channels, dict), (
-            "all channels must be named when using .join()"
-        )
+        assert isinstance(channels, list) or isinstance(
+            channels, tuple
+        ), "channels must be a list or tuple"
+        assert isinstance(
+            self.channels, dict
+        ), "all channels must be named when using .join()"
         return self.copy(
             update=dict(
                 channels={

libs/langgraph/tests/test_checkpoint_migration.py

@@ -1573,9 +1573,9 @@ def test_migrate_checkpoints(source: str, target: str) -> None:
                     migrated["versions_seen"][c][v].split(".")[0]
                 )
         # check that the migrated checkpoint matches the target checkpoint
-        assert migrated == target_checkpoint.checkpoint, (
-            f"Checkpoint mismatch at index {idx}"
-        )
+        assert (
+            migrated == target_checkpoint.checkpoint
+        ), f"Checkpoint mismatch at index {idx}"
 
 
 @NEEDS_CONTEXTVARS

libs/langgraph/tests/test_large_cases.py

@@ -2830,9 +2830,9 @@ def test_state_graph_packets(
     # Define decision-making logic
     def should_continue(data: dict) -> str:
         assert isinstance(data["session"], httpx.Client)
-        assert data["something_extra"] == "hi there", (
-            "nodes can pass extra data to their cond edges, which isn't saved in state"
-        )
+        assert (
+            data["something_extra"] == "hi there"
+        ), "nodes can pass extra data to their cond edges, which isn't saved in state"
         # Logic to decide whether to continue in the loop or exit
         if tool_calls := data["messages"][-1].tool_calls:
             return [Send("tools", tool_call) for tool_call in tool_calls]