你好，集成再qlib中的MASTER模型被删除了吗？

## ❓ Questions and Help

We sincerely suggest you to carefully read the [documentation](http://qlib.readthedocs.io/) of our library as well as the official [paper](https://arxiv.org/abs/2009.11189). After that, if you still feel puzzled, please describe the question clearly under this issue.

你好，集成再qlib中的MASTER模型被删除了吗？是什么原因呢