Add missing parentithesis

login_provider/db.py

@@ -44,7 +44,7 @@ class User(UserMixin):
         verifyPassword(
             username: {0},
             password: {1})
-            }'''.format(self.username, password)
+            }}'''.format(self.username, password)
         result = json.loads(graphql_client.execute(querystring))
         verified = False
         if "data" in result: