diff --git a/src/ipython_shell/__init__.py b/src/ipython_shell/__init__.py
index 5b9c675..26bdcb2 100644
--- a/src/ipython_shell/__init__.py
+++ b/src/ipython_shell/__init__.py
@@ -1,13 +1,14 @@
 """Small, side-effect-free API for the in-process IPython runner."""
 
 from .app import App
-from .jupyter.app import JupyterApp
-from .jupyter.shell import JupyterShell
 from .events import (
     error_from_execution_result,
     event_from_execution_result,
     event_from_history_output,
 )
+from .jupyter.app import JupyterApp
+from .jupyter.shell import JupyterShell
+from .jupyter.transport import InputRequest, JupyterTransport, KernelMessage
 from .models import (
     AppInfo,
     CallError,
@@ -28,16 +29,10 @@ from .shell import (
     run_cell_and_collect,
     setup_shell,
 )
-from .jupyter.transport import InputRequest, JupyterTransport, KernelMessage
 from .utils import generate_good_names
 
 __all__ = [
     "App",
-    "JupyterApp",
-    "JupyterShell",
-    "JupyterTransport",
-    "InputRequest",
-    "KernelMessage",
     "AppInfo",
     "CallError",
     "CallEvent",
@@ -46,7 +41,12 @@ __all__ = [
     "CallResponse",
     "CallResult",
     "CallResultResponse",
+    "InputRequest",
     "JSONValue",
+    "JupyterApp",
+    "JupyterShell",
+    "JupyterTransport",
+    "KernelMessage",
     "Shell",
     "ShellInfo",
     "ShellStatus",
diff --git a/src/ipython_shell/jupyter/app.py b/src/ipython_shell/jupyter/app.py
index 9f0471a..a0f20d8 100644
--- a/src/ipython_shell/jupyter/app.py
+++ b/src/ipython_shell/jupyter/app.py
@@ -1,9 +1,9 @@
 from collections.abc import AsyncIterator
 from uuid import uuid4
 
+from ..utils import generate_good_names
 from .shell import JupyterShell
 from .transport import InputRequest, KernelMessage
-from ..utils import generate_good_names
 
 
 class JupyterApp:
diff --git a/src/ipython_shell/jupyter/transport.py b/src/ipython_shell/jupyter/transport.py
index 3745479..320b332 100644
--- a/src/ipython_shell/jupyter/transport.py
+++ b/src/ipython_shell/jupyter/transport.py
@@ -97,7 +97,9 @@ class JupyterTransport:
                         msg_type=message["msg_type"],
                         parent_id=parent_id,
                         content=dict(message.get("content", {})),
-                        buffers=[bytes(buffer) for buffer in message.get("buffers", [])],
+                        buffers=[
+                            bytes(buffer) for buffer in message.get("buffers", [])
+                        ],
                     )
                     if decoded.msg_type == "execute_reply":
                         # The shell reply and IOPub messages use different
diff --git a/src/ipython_webapp/jupyter/app.py b/src/ipython_webapp/jupyter/app.py
index 09a8d9b..795f343 100644
--- a/src/ipython_webapp/jupyter/app.py
+++ b/src/ipython_webapp/jupyter/app.py
@@ -36,7 +36,9 @@ def serialize_event(event: KernelMessage | InputRequest) -> dict[str, object]:
         "msg_type": event.msg_type,
         "parent_id": event.parent_id,
         "content": event.content,
-        "buffers": [base64.b64encode(buffer).decode("ascii") for buffer in event.buffers],
+        "buffers": [
+            base64.b64encode(buffer).decode("ascii") for buffer in event.buffers
+        ],
     }
 
 
diff --git a/tests/test_jupyter_webapp.py b/tests/test_jupyter_webapp.py
index 927a140..5cf0575 100644
--- a/tests/test_jupyter_webapp.py
+++ b/tests/test_jupyter_webapp.py
@@ -47,7 +47,9 @@ class JupyterWebAppTests(unittest.IsolatedAsyncioTestCase):
             response.headers["content-type"].startswith("application/x-ndjson")
         )
         events = [json.loads(line) for line in response.text.splitlines()]
-        result = next(event for event in events if event["msg_type"] == "execute_result")
+        result = next(
+            event for event in events if event["msg_type"] == "execute_result"
+        )
         self.assertEqual(result["content"]["data"]["text/plain"], "{'answer': 42}")
 
     async def test_input_request_can_be_replied_to_while_run_streams(self):
@@ -67,7 +69,9 @@ class JupyterWebAppTests(unittest.IsolatedAsyncioTestCase):
         finally:
             await shell_app.shutdown()
 
-        result = next(event for event in events if event.get("msg_type") == "execute_result")
+        result = next(
+            event for event in events if event.get("msg_type") == "execute_result"
+        )
         self.assertEqual(result["content"]["data"]["text/plain"], "'Ada'")
 
 
diff --git a/tests/test_transport.py b/tests/test_transport.py
index c2494e3..5939bc2 100644
--- a/tests/test_transport.py
+++ b/tests/test_transport.py
@@ -1,7 +1,11 @@
 import asyncio
 import unittest
 
-from ipython_shell.jupyter.transport import InputRequest, JupyterTransport, KernelMessage
+from ipython_shell.jupyter.transport import (
+    InputRequest,
+    JupyterTransport,
+    KernelMessage,
+)
 
 
 class TransportTests(unittest.TestCase):
@@ -24,9 +28,7 @@ class AsyncTransportTests(unittest.IsolatedAsyncioTestCase):
         await transport.start()
         try:
             call_id = await transport.execute("2 + 2")
-            messages = [
-                message async for message in transport.messages_for(call_id)
-            ]
+            messages = [message async for message in transport.messages_for(call_id)]
         finally:
             await transport.shutdown()
 
@@ -72,19 +74,14 @@ class AsyncTransportTests(unittest.IsolatedAsyncioTestCase):
         await transport.start()
         try:
             call_id = await transport.execute(
-                "import matplotlib.pyplot as plt\n"
-                "plt.plot([1, 2, 3], [4, 5, 6])"
+                "import matplotlib.pyplot as plt\nplt.plot([1, 2, 3], [4, 5, 6])"
             )
-            messages = [
-                message async for message in transport.messages_for(call_id)
-            ]
+            messages = [message async for message in transport.messages_for(call_id)]
         finally:
             await transport.shutdown()
 
         display = next(
-            message
-            for message in messages
-            if message.msg_type == "display_data"
+            message for message in messages if message.msg_type == "display_data"
         )
         self.assertIn("image/png", display.content["data"])