fix linting in changed file

Author: elenabushneva

ns1/__init__.py

@@ -503,7 +503,11 @@ def createReservation(
         import ns1.ipam
 
         reservation = ns1.ipam.Reservation(
-            self.config, scopegroup_id, address_id, options=dhcp_options, mac=mac
+            self.config,
+            scopegroup_id,
+            address_id,
+            options=dhcp_options,
+            mac=mac,
         )
 
         return reservation.create(callback=callback, errback=errback, **kwargs)