diff --git a/src/appose/service.py b/src/appose/service.py
index 3e6b53b..82d7b02 100644
--- a/src/appose/service.py
+++ b/src/appose/service.py
@@ -169,7 +169,6 @@ def _stdout_loop(self) -> None:
                 # Skip it and keep going, but log it first.
                 self._debug_service(f"<INVALID> {line}")
 
-
     def _stderr_loop(self) -> None:
         """
         Input loop processing lines from the worker's stderr stream.
@@ -194,10 +193,14 @@ def _monitor_loop(self) -> None:
         # Do some sanity checks.
         exit_code = self._process.returncode
         if exit_code != 0:
-            self._debug_service(f"<worker process terminated with exit code {exit_code}>")
+            self._debug_service(
+                f"<worker process terminated with exit code {exit_code}>"
+            )
         task_count = len(self._tasks)
         if task_count > 0:
-            self._debug_service(f"<worker process terminated with {task_count} pending tasks>")
+            self._debug_service(
+                f"<worker process terminated with {task_count} pending tasks>"
+            )
 
         # Notify any remaining tasks about the process crash.
         for task in self._tasks.values():