add `mention` property to `SoundBoard`

discord/soundboard.py

@@ -148,6 +148,14 @@ class SoundboardDefaultSound(BaseSoundboardSound):
         inner = ' '.join('%s=%r' % t for t in attrs)
         return f"<{self.__class__.__name__} {inner}>"
 
+    @property
+    def mention(self) -> str:
+        """:class:`str`: Returns a string that allows you to mention this default sound.
+
+        .. versionadded:: 2.5
+        """
+        return f'<sound:0:{self.id}>'
+
 
 class SoundboardSound(BaseSoundboardSound):
     """Represents a Discord soundboard sound.
@@ -232,6 +240,14 @@ class SoundboardSound(BaseSoundboardSound):
             return self._state.get_user(self._user_id)
         return User(state=self._state, data=self._user)
 
+    @property
+    def mention(self) -> str:
+        """:class:`str`: Returns a string that allows you to mention this sound.
+
+        .. versionadded:: 2.5
+        """
+        return f'<sound:{self.guild.id}:{self.id}>'
+
     async def edit(
         self,
         *,