---
title: delegate
framework: virtualization
role: symbol
role_heading: Instance Property
path: virtualization/vznetworkblockdevicestoragedeviceattachment/delegate
---

# delegate

The object that receives messages about changes to the network block device attachment.

## Declaration

```swift
weak var delegate: (any VZNetworkBlockDeviceStorageDeviceAttachmentDelegate)? { get set }
```

## See Also

### Observing changes to the network block device

- [VZNetworkBlockDeviceStorageDeviceAttachmentDelegate](virtualization/vznetworkblockdevicestoragedeviceattachmentdelegate.md)