# A2uiProtocolConstants

Artifact: [androidx.a2ui:a2ui-model](https://developer.android.com/jetpack/androidx/releases/a2ui) [View Source](https://cs.android.com/search?q=file:androidx/a2ui/model/protocol/A2uiProtocolConstants.kt+class:androidx.a2ui.model.protocol.A2uiProtocolConstants) Added in [1.0.0-alpha02](https://developer.android.com/jetpack/androidx/releases/a2ui#1.0.0-alpha02)

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```
public static class A2uiProtocolConstants
```

<br />

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Common constants used across the A2UI protocol data models.

## Summary

| ### Constants |
|---|---|
| `static final @https://developer.android.com/reference/androidx/annotation/NonNull https://developer.android.com/reference/java/lang/String.html` | `https://developer.android.com/reference/androidx/a2ui/model/protocol/A2uiProtocolConstants#PROTOCOL_VERSION()` The A2UI protocol version supported by this client library. |

| ### Public fields |
|---|---|
| `static @https://developer.android.com/reference/androidx/annotation/NonNull https://developer.android.com/reference/androidx/a2ui/model/protocol/A2uiProtocolConstants` | `https://developer.android.com/reference/androidx/a2ui/model/protocol/A2uiProtocolConstants#INSTANCE()` |

## Constants

### PROTOCOL_VERSION

Added in [1.0.0-alpha02](https://developer.android.com/jetpack/androidx/releases/a2ui#1.0.0-alpha02)

```
public static final @NonNull String PROTOCOL_VERSION
```

The A2UI protocol version supported by this client library.

## Public fields

### INSTANCE

Added in [1.0.0-alpha02](https://developer.android.com/jetpack/androidx/releases/a2ui#1.0.0-alpha02)

```
public static @NonNull A2uiProtocolConstants INSTANCE
```