Fix NameError in GuildChannel.changed_roles

8 years ago · 0ce781b37c
1 changed files with 1 additions and 0 deletions
--- a/discord/abc.py
+++ b/discord/abc.py
@ -25,6 +25,7 @@ DEALINGS IN THE SOFTWARE.
 """

 import abc
+import copy
 import asyncio

 from collections import namedtuple