from celery_app import app

@app.task(bind=True, name='test_task')
def sample_task(self):
    """示例任务，带任务实例绑定"""
    self.update_state(state='PROGRESS', meta={'status': 'working'})
    print("Task is running...")
    self.update_state(state='PROGRESS', meta={'status': 'finalizing'})
    return "Task Completed!"