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# dictionaries

A cloned data column of machine learning dictionaries.

```
var dictionaries: MLDataColumn<MLDataValue.DictionaryType>? { get }
```

## Return Value

A new data column if the underlying type of the column is
[`MLDataValue.DictionaryType`](/documentation/CreateML/MLDataValue/DictionaryType); otherwise `nil`.

## Discussion

This property is functionally equivalent to passing
[`MLDataValue.DictionaryType`](/documentation/CreateML/MLDataValue/DictionaryType) `.self` to
[`column(type:)`](/documentation/CreateML/MLUntypedColumn/column(type:)). Typically you ensure
[`type`](/documentation/CreateML/MLUntypedColumn/type) is equal to
[`MLDataValue.ValueType.dictionary`](/documentation/CreateML/MLDataValue/ValueType/dictionary) before getting this property.

---

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