diff --git a/rdap/assignment.py b/rdap/assignment.py
index 85a4661..f1e4516 100644
--- a/rdap/assignment.py
+++ b/rdap/assignment.py
@@ -5,7 +5,6 @@
 
 
 class RIRAssignmentLookup:
-
     """
     Fetch RIR assignement status lists from ripe and lookup
     assignment per asn