1 # AutoFillExtensionContext 2 3 The **AutoFillExtensionContext** module, inherited from [ExtensionContext](js-apis-inner-application-extensionContext.md), provides the context environment for the AutoFillExtensionAbility. 4 5 > **NOTE** 6 > 7 > The initial APIs of this module are supported since API version 11. Newly added APIs will be marked with a superscript to indicate their earliest API version. 8 > The APIs of this module can be used only in the stage model. 9 10 ## Usage 11 12 Before using the **AutoFillExtensionContext** module, you must define a child class that inherits from **AutoFillExtensionAbility**. 13 14 ```ts 15 import AutoFillExtensionAbility from '@ohos.app.ability.AutoFillExtensionAbility'; 16 17 class MyAutoFillExtensionAbility extends AutoFillExtensionAbility { 18 onCreate() { 19 let AutoFillExtensionContext = this.context; 20 } 21 } 22 ``` 23