# FunctionKeyMetaClass

Artifact: [androidx.compose.runtime:runtime](https://developer.android.com/jetpack/androidx/releases/compose-runtime) [View Source](https://cs.android.com/search?q=file:androidx/compose/runtime/internal/FunctionKeyMeta.kt+class:androidx.compose.runtime.internal.FunctionKeyMetaClass) Added in [1.2.0](https://developer.android.com/jetpack/androidx/releases/compose-runtime#1.2.0) Common/AllAndroid/JVMNative/C/iOSJavaScript
- Cmn

  ```
  @ComposeCompilerApi
  @Target(allowedTargets = [AnnotationTarget.CLASS])
  @Retention(value = AnnotationRetention.BINARY)
  annotation FunctionKeyMetaClass
  ```

*** ** * ** ***

This annotation is applied to the FunctionKeyMeta classes created by the Compose Compiler. This is intended to be used to provide information useful to tooling.

## Summary

| ### Public constructors |
|---|---|
| `https://developer.android.com/reference/kotlin/androidx/compose/runtime/internal/FunctionKeyMetaClass#FunctionKeyMetaClass(kotlin.String)(file: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html)` | Cmn |

| ### Public properties |
|---|---|---|
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html` | `https://developer.android.com/reference/kotlin/androidx/compose/runtime/internal/FunctionKeyMetaClass#file()` The file path of the file the associated class was produced for | Cmn |

## Public constructors

### FunctionKeyMetaClass

Cmn Added in [1.9.0](https://developer.android.com/jetpack/androidx/releases/compose-runtime#1.9.0)

```
FunctionKeyMetaClass(file: String)
```

| Parameters |
|---|---|
| `file: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html` | The file path of the file the associated class was produced for |

## Public properties

### file

Cmn

```
val file: String
```

The file path of the file the associated class was produced for