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# userInfo()

Returns a mutable dictionary that contains information that can be shared between all instances of the `QCPlugIn` subclass, running in the same Quartz Composer context.

```
func userInfo() -> NSMutableDictionary!
```

## Return Value

A mutable dictionary.

## Discussion

When you add information to the dictionary, make sure that you use unique keys, such as `com.myCompany.foo`. You can use this dictionary to cache data that you want to share.

---

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