chore: Format code

Author: paxcodes

clickhouse_backend/driver/connection.py

@@ -73,7 +73,6 @@ def send_query(self, query, query_id=None, params=None):
 
 
 class Cursor(cursor.Cursor):
-    
     # Whether to return data in columnar format. For backwards-compatibility,
     # let's default to None.
     columnar = None