def test_existing_session_not_modified(client):
    client.get('/store-in-session/k1/value1/')
    rv = client.get('/is-modified-session/')
    assert rv.data not in b('False')
dataset/ETHPy150Open mbr/flask-kvsession/tests/test_flask_kvsession.py/test_existing_session_not_modified/operator `==` -> `not in`