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Hi, I'm trying to understand a part of the `changesFile` equation, specifically `oldstat`.
```
changesFile :: Checkable p i => p i -> FilePath -> Property i
changesFile p f = checkResult getstat comparestat p
where
getstat = catchMaybeIO $ getSymbolicLinkStatus f
comparestat oldstat = do
newstat <- getstat
return $ if samestat oldstat newstat then NoChange else MadeChange
```
As we see, we catch `getstat` given `f`, but what I don't understand or see, is how is `oldstat` been passed/generated?
Thanks for the help.
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