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# superDecoder()

Decodes a nested container and returns a `Decoder` instance for decoding
`super` from that container.

```
mutating func superDecoder() throws -> any Decoder
```

## Return Value

A new `Decoder` to pass to `super.init(from:)`.

## Discussion> throws: `DecodingError.valueNotFound` if the encountered encoded value
> is null, or of there are no more values to decode.

---

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