feat: Add bot.get_app_emoji() (#180)

Author: Paillat-dev

src/custom/__init__.py

@@ -3,7 +3,7 @@
 
 import contextlib
 from logging import getLogger
-from typing import TYPE_CHECKING, Any, TypeAlias, override
+from typing import TYPE_CHECKING, Any, TypeAlias, cast, override
 
 import aiocache
 import discord
@@ -201,6 +201,15 @@ def intents(self, value: Any) -> None:  # pyright: ignore [reportExplicitAny]
             raise AttributeError("Cannot change intents after the connection is established.")
         self._connection._intents.value = value.value  # noqa: SLF001  # pyright: ignore [reportPrivateUsage]
 
+    def get_app_emoji(self, key: int | str) -> discord.AppEmoji | None:
+        if isinstance(key, int):
+            if (emoji := self.get_emoji(key)) in self.app_emojis:
+                return cast("discord.AppEmoji", emoji)
+        else:
+            with contextlib.suppress(StopIteration):
+                return next(emoji for emoji in self.app_emojis if emoji.name == key)
+        return None
+
 
 class CustomUvicornConfig(BaseUvicornConfig):
     @override