# ObserverManager<TObserver>

Package: [Microsoft.Orleans.Core](/orleans/docs/api/csharp/microsoft.orleans.core/) 10.0.0

[NuGet package](https://www.nuget.org/packages/Microsoft.Orleans.Core) | [Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Core/Utils/ObserverManager.cs#L17)

```csharp
public class ObserverManager<TObserver> : ObserverManager<IAddressable, TObserver>
```

Maintains a collection of observers.

## Type parameters

- `TObserver`: The observer type.

## Constructors

- [ObserverManager&lt;TObserver&gt;(TimeSpan, ILogger)](/orleans/docs/api/csharp/microsoft.orleans.core/orleans.utilities.observermanager-1/constructors/constructor-system-timespan-microsoft-extensions-logging-ilogger-edc06432/)