# Codec_FSharpMapSurrogate<TKey, TValue>.Serialize(Writer<TBufferWriter>, 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, Serialize<TBufferWriter>(ref Writer<TBufferWriter> writer, scoped ref FSharpMapSurrogate<TKey, TValue> instance)
```

Serializes the provided value.

### Parameters

- `writer` (`Writer<TBufferWriter>`): The writer.
- `instance` (`FSharpMapSurrogate<TKey, TValue>`): The value.