def serialized(self):
        to_ret = {}
        for group, requirements in self.items():
            to_ret[group] = [str(requirement) for requirement in requirements]
        return to_ret
def setUp(self):
        super().setUp()

        self.project1 = self.env["project.project"].create({"name": "Project 1"})
        self.task1 = self.env["project.task"].create(
            {"name": "name1", "project_id": self.project1.id}
        )
        self.subtask1 = self.env["project.task"].create(
            {"name": "2", "project_id": self.project1.id, "parent_id": self.task1.id}
        )
        self.subtask2 = self.env["project.task"].create(
            {"name": "3", "project_id": self.project1.id, "parent_id": self.task1.id}
        )