diff --git a/discord/ext/commands/converter.py b/discord/ext/commands/converter.py
index 4406490b..bbef6719 100644
--- a/discord/ext/commands/converter.py
+++ b/discord/ext/commands/converter.py
@@ -1044,7 +1044,9 @@ class Option(Generic[T, DT]):  # type: ignore
         "name",
     )
 
-    def __init__(self, default: T = inspect.Parameter.empty, *, description: DT, name: str = discord.utils.MISSING) -> None:
+    def __init__(
+        self, default: T = inspect.Parameter.empty, *, description: DT, name: str = discord.utils.MISSING
+    ) -> None:
         self.description = description
         self.default = default
         self.name: str = name
diff --git a/discord/ext/commands/core.py b/discord/ext/commands/core.py
index a23ae878..3d6a9631 100644
--- a/discord/ext/commands/core.py
+++ b/discord/ext/commands/core.py
@@ -1288,7 +1288,11 @@ class Command(_BaseCommand, Generic[CogT, P, T]):
 
             elif all([arg in application_option_channel_types for arg in annotation.__args__]):
                 option["type"] = 7
-                option["channel_types"] = [discord_value for arg in annotation.__args__ for discord_value in application_option_channel_types[arg]]
+                option["channel_types"] = [
+                    discord_value
+                    for arg in annotation.__args__
+                    for discord_value in application_option_channel_types[arg]
+                ]
 
         elif origin is Literal:
             literal_values = annotation.__args__