# IStreamQueueBalancer.Initialize(IStreamQueueMapper)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streams.istreamqueuebalancer/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streams.istreamqueuebalancer/methods/)

```csharp
public abstract Task Initialize(IStreamQueueMapper queueMapper)
```

Initializes this instance.

### Parameters

- `queueMapper` (`IStreamQueueMapper`): The queue mapper.

### Returns

A `System.Threading.Tasks.Task` representing the operation.