code: func (l VirtualDeviceList) InsertImg(device *types.VirtualFloppy, img string) *types.VirtualFloppy {
  	device.Backing = &types.VirtualFloppyImageBackingInfo{
  		VirtualDeviceFileBackingInfo: types.VirtualDeviceFileBackingInfo{
  			FileName: img,
  		},
  	}
  
  	return device
  }
docs: // InsertImg changes the floppy device backing to use the given img file.