Update command.py

stefanruijsenaars · web-flow · commit 07efcc331eda · 2021-10-05T10:52:26.000+01:00
diff --git a/smpplib/command.py b/smpplib/command.py
@@ -566,7 +566,8 @@ def __init__(self, command, **kwargs):
 
 class GenericNAck(Command):
     """General Negative Acknowledgement class"""
-
+    params = {}
+    params_order = ()
     _defs = []
 
     def __init__(self, command, **kwargs):
