code: def QA_SU_save_order_queue(order_queue, client=DATABASE):
      
      collection = client.order_queue
      collection.create_index(
          [('account_cookie',
            ASCENDING),
           ('order_id',
            ASCENDING)],
          unique=True
      )
      for order in order_queue.values():
          order_json = order.to_dict()
          try:
              collection.update_one(
                  {
                      'account_cookie': order_json.get('account_cookie'),
                      'order_id': order_json.get('order_id')
                  },
                  {'$set': order_json},
                  upsert=True
              )
          except Exception as e:
              print(e)
docs: 增量存储order_queue
  
      Arguments:
          order_queue {[type]} -- [description]
  
      Keyword Arguments:
          client {[type]} -- [description] (default: {DATABASE})