# ProtobufCodec Fields

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.serialization.protobuf/orleans.serialization.protobufcodec/)

## WellKnownAlias {#wellknownalias-fc61eb7a}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.serialization.protobuf/orleans.serialization.protobufcodec/fields/wellknownalias-fc61eb7a/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Serializers/Orleans.Serialization.Protobuf/ProtobufCodec.cs)

```csharp
public const string WellKnownAlias
```