diff --git a/tests/test_annotated.py b/tests/test_annotated.py
index beb4ce2293..657e2bd6d0 100644
--- a/tests/test_annotated.py
+++ b/tests/test_annotated.py
@@ -60,8 +60,10 @@ def cmd(force: Annotated[bool, typer.Option("--force")] = False):
     assert result.exit_code == 0, result.output
     assert "Forcing operation" in result.output
 
+
 def test_runner_can_use_an_async_method():
     app = typer.Typer()
+
     @app.command()
     async def cmd(val: Annotated[int, typer.Argument()] = 0):
         print(f"hello {val}")
@@ -74,10 +76,14 @@ async def cmd(val: Annotated[int, typer.Argument()] = 0):
     assert result.exit_code == 0, result.output
     assert "hello 42" in result.output
 
+
 if sys.version_info >= (3, 11):
+
     def test_runner_can_use_a_custom_async_loop():
         import asyncio
+
         app = typer.Typer(loop_factory=asyncio.new_event_loop)
+
         @app.command()
         async def cmd(val: Annotated[int, typer.Argument()] = 0):
             print(f"hello {val}")
@@ -89,4 +95,3 @@ async def cmd(val: Annotated[int, typer.Argument()] = 0):
         result = runner.invoke(app, ["42"])
         assert result.exit_code == 0, result.output
         assert "hello 42" in result.output
-
diff --git a/typer/main.py b/typer/main.py
index 2e644ccc4e..1c9884e95d 100644
--- a/typer/main.py
+++ b/typer/main.py
@@ -252,7 +252,9 @@ def runner(*args, **kwargs) -> Any:
                     elif sys.version_info >= (3, 7):
                         return asyncio.run(f(*args, **kwargs))
                     else:
-                        asyncio.get_event_loop().run_until_complete(asyncio.wait(f(*args, **kwargs)))
+                        asyncio.get_event_loop().run_until_complete(
+                            asyncio.wait(f(*args, **kwargs))
+                        )
 
                 return runner
 
@@ -280,7 +282,6 @@ def runner(*args, **kwargs) -> Any:
                 )
             )
 
-
         return decorator
 
     def add_typer(