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


@needs_pydanticv1
def test_custom_encoders():
    class safe_datetime(datetime):
        pass

    class MyModel(BaseModel):
        dt_field: safe_datetime

    instance = MyModel(dt_field=safe_datetime.now())