Reformat code using black

Segments where readability was hampered were fixed by appropriate
format skipping directives. New code should hopefully be black
compatible. The moment they remove the -S option is probably the moment
I stop using black though.

discord/context_managers.py

@@ -34,9 +34,12 @@ if TYPE_CHECKING:
 
     TypingT = TypeVar('TypingT', bound='Typing')
 
+# fmt: off
 __all__ = (
     'Typing',
 )
+# fmt: on
+
 
 def _typing_done_callback(fut: asyncio.Future) -> None:
     # just retrieve any exception and call it a day
@@ -45,6 +48,7 @@ def _typing_done_callback(fut: asyncio.Future) -> None:
     except (asyncio.CancelledError, Exception):
         pass
 
+
 class Typing:
     def __init__(self, messageable: Messageable) -> None:
         self.loop: asyncio.AbstractEventLoop = messageable._state.loop
@@ -67,7 +71,8 @@ class Typing:
         self.task.add_done_callback(_typing_done_callback)
         return self
 
-    def __exit__(self,
+    def __exit__(
+        self,
         exc_type: Optional[Type[BaseException]],
         exc_value: Optional[BaseException],
         traceback: Optional[TracebackType],
@@ -79,7 +84,8 @@ class Typing:
         await channel._state.http.send_typing(channel.id)
         return self.__enter__()
 
-    async def __aexit__(self,
+    async def __aexit__(
+        self,
         exc_type: Optional[Type[BaseException]],
         exc_value: Optional[BaseException],
         traceback: Optional[TracebackType],