def METHOD_NAME(self):
    super().METHOD_NAME()
    # DB already contains a dataset.
    self.task = self.add_task()
    self.task_type = "my_task_type"
    self.dataset = self.add_dataset(
        task=self.task, task_type=self.task_type)
    self.session.commit()
    self.task_id = self.task.id
    self.task_name = self.task.name
    self.dataset_desc = self.dataset.description