}
    assert jsonable_encoder(model, include={"foo"}) == {"foo": "foo"}
    assert jsonable_encoder(model, exclude={"bla"}) == {"foo": "foo", "bar": "bar"}
    assert jsonable_encoder(model, include={}) == {}
    assert jsonable_encoder(model, exclude={}) == {
        "foo": "foo",
        "bar": "bar",
        "bla": "bla",
    }


def test_custom_encoders():
    class safe_datetime(datetime):
        pass