Merge branch 'dev' into database-rewrite

utils/classes.py

@@ -1,3 +1,4 @@
+import asyncio
 from typing import Dict
 
 from discord.ext.commands import Cog
@@ -13,3 +14,9 @@ class BaseCog(Cog):
         for command in self.walk_commands():
             if brief := slash_descriptions.get(command.qualified_name):
                 command.brief = brief
+
+    def is_lavalink_ready(self) -> bool:
+        return (
+            hasattr(self.bot, "lavalink")
+            and len(self.bot.lavalink.node_manager.available_nodes) > 0
+        )