---
title: size
framework: Hypervisor
role: symbol
role_heading: Instance Property
path: hypervisor/hv_ion_message_t/size
---

# size

The size of the value written by the notifier.

## Declaration

```swift
var size: UInt64
```

## See Also

### Instance properties

- [addr](hypervisor/hv_ion_message_t/addr.md)
- [header](hypervisor/hv_ion_message_t/header.md)
- [trailer](hypervisor/hv_ion_message_t/trailer.md)
- [value](hypervisor/hv_ion_message_t/value.md)