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# decoded(_:using:)

Decodes data for each element of the column.

```
func decoded<T, Decoder>(_ type: T.Type, using decoder: Decoder) throws -> AnyColumn where T : Decodable, Decoder : TopLevelDecoder
```

## Parameters

`type`

The type of the value to decode.

`decoder`

A decoder that accepts the column elements’ type.

## Return Value

A new column of decoded values.

## Discussion> Throws: `ColumnDecodingError` if an element fails to decode.

---

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