refactor: make ApplicationContext.user non-optional (#1647)

Co-authored-by: Lala Sabathil <lala@pycord.dev>
Co-authored-by: BobDotCom <71356958+BobDotCom@users.noreply.github.com>

discord/commands/context.py

@@ -201,13 +201,13 @@ def message(self) -> Message | None:
         return self.interaction.message
 
     @cached_property
-    def user(self) -> Member | User | None:
+    def user(self) -> Member | User:
         """Returns the user that sent this context's command.
         Shorthand for :attr:`.Interaction.user`.
         """
-        return self.interaction.user
+        return self.interaction.user  # type: ignore # command user will never be None
 
-    author: Member | User | None = user
+    author = user
 
     @property
     def voice_client(self) -> VoiceProtocol | None:

discord/interactions.py

@@ -104,7 +104,7 @@ class Interaction:
     application_id: :class:`int`
         The application ID that the interaction was for.
     user: Optional[Union[:class:`User`, :class:`Member`]]
-        The user or member that sent the interaction.
+        The user or member that sent the interaction. Will be `None` in PING interactions.
     message: Optional[:class:`Message`]
         The message that sent this interaction.
     token: :class:`str`