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# copyDescription

Callback used to create a descriptive string representation of the data pointed to by `info`. In implementing this function, return a reference to a CFString object that describes your allocator and some characteristics of your user-defined data, which is used by `CFCopyDescription()`. You can set this field to `NULL`, in which case Core Foundation will provide a rudimentary description.

```
var copyDescription: CFAllocatorCopyDescriptionCallBack?
```

---

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