```
@Target(allowedTargets = {AnnotationTarget.CLASS}) 
public @interface AllOpen

                    
```
适用于Kotlin的allOpen编译器插件的标准注解。让被注解的类及其属性和方法默认是开放的。需要自行配置。
Annotation that is used together with kotlin compiler plugin allOpen. Let the annotated classes and it's properties and methods be open by default. Should be configured manually.

Annotation AllOpen