I'm not exactly aware, where to point to in the changelogs, but in an pull request from June they removed the MethodViewType class: pallets/flask#4624

So the import of this class in https://github.com/miLibris/flask-rest-jsonapi/blob/master/flask_rest_jsonapi/resource.py#L12 will not work.

Are there any plans to make the flask-rest-jsonapi ready for usage in Flask 2.2 ?