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# superDecoder()

Returns a `Decoder` instance for decoding `super` from the container
associated with the default `super` key.

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

## Return Value

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

## Discussion

Equivalent to calling `superDecoder(forKey:)` with
`Key(stringValue: "super", intValue: 0)`.

> throws: `DecodingError.keyNotFound` if `self` does not have an entry
> for the default `super` key.

> throws: `DecodingError.valueNotFound` if `self` has a null entry for
> the default `super` key.

---

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