diff --git a/demo.ipynb b/demo.ipynb
index dd779d9..8cf7d1c 100644
--- a/demo.ipynb
+++ b/demo.ipynb
@@ -23,9 +23,7 @@
     "\n",
     "\n",
     "def all_subclasses(cls):\n",
-    "    return set(cls.__subclasses__()).union(\n",
-    "        [s for c in cls.__subclasses__() for s in all_subclasses(c)]\n",
-    "    )"
+    "    return set(cls.__subclasses__()).union([s for c in cls.__subclasses__() for s in all_subclasses(c)])"
    ]
   },
   {
@@ -46,11 +44,7 @@
     "    for k, v in args.parameters.items():\n",
     "        if k == \"self\":\n",
     "            continue\n",
-    "        if (\n",
-    "            k != \"kwargs\"\n",
-    "            and v.POSITIONAL_OR_KEYWORD\n",
-    "            and v.default is inspect.Parameter.empty\n",
-    "        ):\n",
+    "        if k != \"kwargs\" and v.POSITIONAL_OR_KEYWORD and v.default is inspect.Parameter.empty:\n",
     "            _mock_args[k] = MagicMock()\n",
     "            print(\"mocked \", k, v)  # noqa: T201\n",
     "        try:\n",