---
title: "InternalFoundationApi"
description: ""
type: "class"
---

<div class='type'>Class</div>


<a id='references'></a>

<div class='sourceset sourceset-common'>Common</div>


> **Requires Opt-in** This API is internal to library.

```kotlin
@Target(
    AnnotationTarget.CLASS,
    AnnotationTarget.FUNCTION,
    AnnotationTarget.PROPERTY,
    AnnotationTarget.PROPERTY_GETTER,
    AnnotationTarget.PROPERTY_SETTER,
)
annotation class InternalFoundationApi
```