def _get_api_urls(self, api_urls=None):
        """
            Completes a dict with the CRUD urls of the API.

        :param api_urls: A dict with the urls {'<FUNCTION>':'<URL>',...}
        :return: A dict with the CRUD urls of the base API.
        """
        view_name = self.__class__.__name__
        api_urls = api_urls or {}
        api_urls["read"] = url_for(view_name + ".api_read")
        api_urls["delete"] = url_for(view_name + ".api_delete", pk="")
        api_urls["create"] = url_for(view_name + ".api_create")
        api_urls["update"] = url_for(view_name + ".api_update", pk="")
        return api_urls

            Completes a dict with the CRUD urls of the API.

        :param api_urls: A dict with the urls {'<FUNCTION>':'<URL>',...}
        :return: A dict with the CRUD urls of the base API.
        
flask_appbuilder/views.py