Privatize APIs by renaming or removing them from __all__ (#6021)

redbot/core/_global_checks.py

@@ -0,0 +1,8 @@
+"""The checks in this module run on every command."""
+from . import commands
+
+
+def init_global_checks(bot):
+    @bot.check_once
+    async def check_message_is_eligible_as_command(ctx: commands.Context) -> bool:
+        return await ctx.bot.message_eligible_as_command(ctx.message)