# Delegate AsyncEventHandler<TEventArgs>

OptimaJet.Workflow.Core.Utils.AsyncEventHandler<TEventArgs>

Namespace: [OptimaJet.Workflow.Core.Utils](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Utils/)

```csharp
public delegate Task AsyncEventHandler<in TEventArgs>(object sender, TEventArgs e, CancellationToken token)
```

## Parameters

| Name | Type | Description |
| --- | --- | --- |
| `sender` | `System.Object` |  |
| `e` | `{TEventArgs}` |  |
| `token` | `System.Threading.CancellationToken` |  |

[Previous TestTracer](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.TestTrace/TestTracer/) [Next AsyncEventHandlerExtensions](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Utils/AsyncEventHandlerExtensions/)