I have a `newtype Yun a = Yun { unYun :: ReaderT YunEnv (ResourceT IO) a }` , and i need to define an instance of `MonadBaseControl IO` for it.<div>Newtype instance deriving don&#39;t work here. I guess the answer is simple, i just can&#39;t figure it out, hope anybody can lightening me.</div>

<div><br></div><div>Best regards.</div><div>Yihuang.
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