func (c *ComputeUtil) disk() (*raw.Disk, error) {
	return c.service.Disks.Get(c.project, c.zone, c.diskName()).Do()
}
func (c *ComputeUtil) disk() (*raw.Disk, error) {
	return c.service.Disks.Get(c.project, c.zone, c.diskName()).Do()
}
func ( c * ComputeUtil ) disk ( ) ( * raw . Disk , error ) { return c . service . Disks . Get ( c . project , c . zone , c . diskName ( ) ) . Do ( ) }
// disk returns the persistent disk attached to the vm.
disk returns the persistent disk attached to the vm .