Add missing annotation

AddAnnotation.kt

fun addAnnotation(ktClass: KtClass, project: Project) {
    val param = ktClass.getMissingAnnotationParam()
    param?.let {
        WriteCommandAction.runWriteCommandAction(project) {
            param.addAnnotation(
                annotationFqName =
                    FqName("com.google.gson.annotations.SerializedName"),
                annotationInnerText = "\"${param.name}\""
            )
            JavaCodeStyleManager.getInstance(project)
                .shortenClassReferences(param)
            CodeStyleManager.getInstance(project).reformat(ktClass)
        }
    }
}