# TestClusterBuilder.Properties

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.testinghost/orleans.testinghost.testclusterbuilder/) | [Properties](/orleans/docs/api/csharp/microsoft.orleans.testinghost/orleans.testinghost.testclusterbuilder/properties/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.TestingHost/TestClusterBuilder.cs#L61)

```csharp
public Dictionary<string, string> Properties
```

Configuration values which will be provided to the silos and clients created by this builder.