fix type check linter warning (#514)

Author: michaelnchin

test/integration/iam/opencypher/test_opencypher_query_with_iam.py

@@ -22,7 +22,7 @@ def test_do_opencypher_query(self):
         assert oc_res.status_code == 200
 
         res = oc_res.json()
-        assert type(res) == dict
+        assert isinstance(res, dict)
         assert expected_league_name == res['results'][0]['l.name']
 
     @pytest.mark.opencypher