handle property
      
      FileSystemHandle
      get
      handle
      
    
    
    
Implementation
FileSystemHandle get handle => js_util.getProperty(this, 'handle');
      
      set
      handle
      (FileSystemHandle newValue) 
      
    
    
    
Implementation
set handle(FileSystemHandle newValue) {
  js_util.setProperty(this, 'handle', newValue);
}