anchor.diff:        analytics_constants.landingScreen,
         analytics_constants.importFile,
       );
  -    final importedFile = await importFileFromPicker(
  +    final DevToolsJsonFile? importedFile = await importFileFromPicker(
         acceptedTypes: ['json'],
       );
  +
       if (importedFile != null) {
         Provider.of<ImportController>(context, listen: false)
             .importData(importedFile);
  
positive.code:       analytics_constants.landingScreen,
        analytics_constants.connectToApp,
      );
      if (connectDialogController.text?.isEmpty ?? true) {
        Notifications.of(context).push('Please enter a VM Service URL.');
        return;
      }
  
  
negative.code: 
  class LandingScreenSection extends StatelessWidget {
    const LandingScreenSection({
      Key? key,
      required this.title,
      required this.child,
    }) : super(key: key);
  
    final String title;
  