Fix typing of various AppCommand decorators

discord/app_commands/commands.py

@@ -2523,6 +2523,16 @@ def guild_only(func: Optional[T] = None) -> Union[T, Callable[[T], T]]:
         return inner(func)
 
 
+@overload
+def private_channel_only(func: None = ...) -> Callable[[T], T]:
+    ...
+
+
+@overload
+def private_channel_only(func: T) -> T:
+    ...
+
+
 def private_channel_only(func: Optional[T] = None) -> Union[T, Callable[[T], T]]:
     """A decorator that indicates this command can only be used in the context of DMs and group DMs.
 
@@ -2565,6 +2575,16 @@ def private_channel_only(func: Optional[T] = None) -> Union[T, Callable[[T], T]]
         return inner(func)
 
 
+@overload
+def dm_only(func: None = ...) -> Callable[[T], T]:
+    ...
+
+
+@overload
+def dm_only(func: T) -> T:
+    ...
+
+
 def dm_only(func: Optional[T] = None) -> Union[T, Callable[[T], T]]:
     """A decorator that indicates this command can only be used in the context of bot DMs.
 
@@ -2606,9 +2626,7 @@ def dm_only(func: Optional[T] = None) -> Union[T, Callable[[T], T]]:
         return inner(func)
 
 
-def allowed_contexts(
-    guilds: bool = MISSING, dms: bool = MISSING, private_channels: bool = MISSING
-) -> Union[T, Callable[[T], T]]:
+def allowed_contexts(guilds: bool = MISSING, dms: bool = MISSING, private_channels: bool = MISSING) -> Callable[[T], T]:
     """A decorator that indicates this command can only be used in certain contexts.
     Valid contexts are guilds, DMs and private channels.
 
@@ -2650,6 +2668,16 @@ def allowed_contexts(
     return inner
 
 
+@overload
+def guild_install(func: None = ...) -> Callable[[T], T]:
+    ...
+
+
+@overload
+def guild_install(func: T) -> T:
+    ...
+
+
 def guild_install(func: Optional[T] = None) -> Union[T, Callable[[T], T]]:
     """A decorator that indicates this command should be installed in guilds.
 
@@ -2688,6 +2716,16 @@ def guild_install(func: Optional[T] = None) -> Union[T, Callable[[T], T]]:
         return inner(func)
 
 
+@overload
+def user_install(func: None = ...) -> Callable[[T], T]:
+    ...
+
+
+@overload
+def user_install(func: T) -> T:
+    ...
+
+
 def user_install(func: Optional[T] = None) -> Union[T, Callable[[T], T]]:
     """A decorator that indicates this command should be installed for users.
 
@@ -2729,7 +2767,7 @@ def user_install(func: Optional[T] = None) -> Union[T, Callable[[T], T]]:
 def allowed_installs(
     guilds: bool = MISSING,
     users: bool = MISSING,
-) -> Union[T, Callable[[T], T]]:
+) -> Callable[[T], T]:
     """A decorator that indicates this command should be installed in certain contexts.
     Valid contexts are guilds and users.