Python: Build(deps-dev): bump ty from 0.0.77 to 0.0.78 in /python in the python-type-checkers group

python/packages/core/agent_framework/_workflows/_checkpoint.py

@@ -288,7 +288,12 @@ async def list_checkpoint_ids(self, *, workflow_name: str) -> list[CheckpointID]
 # the underlying filesystem for the file not to be seen half-written; which write
 # survives is undefined.
 _destination_queues: dict[Path, _DestinationQueue] = {}
-_destination_queues_guard = threading.Lock()
+# A completed predecessor invokes callbacks synchronously. If cancellation lands while
+# a save is entering the queue, its deferred release can therefore run re-entrantly on
+# the same thread before the enqueue frame has left this guard. A plain Lock deadlocks
+# that release (and permanently wedges every later save), while an RLock still excludes
+# all other threads and lets the owning thread finish the hand-off.
+_destination_queues_guard = threading.RLock()
 
 
 @dataclass

python/pyproject.toml

@@ -40,7 +40,7 @@ dev = [
     "mypy==2.3.1",
     "pyright==1.1.411",
     "pyrefly==1.2.0",
-    "ty==0.0.77",
+    "ty==0.0.78",
     "zuban==0.9.3",
     "opentelemetry-sdk",
     "pandas>=2,<4",

python/samples/02-agents/mcp/mcp_long_running_task.py

@@ -53,7 +53,7 @@ async def _run_server() -> None:
     server: Server[Any, Any] = Server("mcp-long-running-task-demo")
     # Auto-registers handlers for tasks/get, tasks/result, tasks/cancel, tasks/list
     # backed by an in-memory store.
-    server.experimental.enable_tasks()
+    server.experimental.enable_tasks()  # ty: ignore[deprecated]
 
     @server.list_tools()
     async def _list_tools() -> list[types.Tool]:  # pyright: ignore[reportUnusedFunction]