# FSharpMapCopier<TKey, TValue> Constructors

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.serialization.fsharp/orleans.serialization.fsharpmapcopier-2/)

## FSharpMapCopier<TKey, TValue>(IDeepCopier<TKey>, IDeepCopier<TValue>) {#constructor-orleans-serialization-cloning-ideepcopier-tkey-orleans-serialization-f1bd6587}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.serialization.fsharp/orleans.serialization.fsharpmapcopier-2/constructors/constructor-orleans-serialization-cloning-ideepcopier-tkey-orleans-serialization-f1bd6587/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Serialization.FSharp/FSharpCodecs.cs#L1057-L1061)

```csharp
public FSharpMapCopier<TKey, FSharpMapCopier(IDeepCopier<TKey> keyCopier, IDeepCopier<TValue> valueCopier)
```

### Parameters

- `keyCopier` (`IDeepCopier<TKey>`)
- `valueCopier` (`IDeepCopier<TValue>`)