code: func (l VirtualDeviceList) InsertIso(device *types.VirtualCdrom, iso string) *types.VirtualCdrom {
  	device.Backing = &types.VirtualCdromIsoBackingInfo{
  		VirtualDeviceFileBackingInfo: types.VirtualDeviceFileBackingInfo{
  			FileName: iso,
  		},
  	}
  
  	return device
  }
docs: // InsertIso changes the cdrom device backing to use the given iso file.