# Codec_FSharpMapSurrogate<TKey, TValue>.Deserialize(Reader<TReaderInput>, FSharpMapSurrogate<TKey, TValue>)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.serialization.fsharp/orleanscodegen.orleans.serialization.codec-fsharpmapsurrogate-2/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.serialization.fsharp/orleanscodegen.orleans.serialization.codec-fsharpmapsurrogate-2/methods/)

```csharp
public void Codec_FSharpMapSurrogate<TKey, Deserialize<TReaderInput>(ref Reader<TReaderInput> reader, scoped ref FSharpMapSurrogate<TKey, TValue> instance)
```

Deserializes the specified type.

### Parameters

- `reader` (`Reader<TReaderInput>`): The reader.
- `instance` (`FSharpMapSurrogate<TKey, TValue>`): The value.