code: func (r Virtual_Guest) GetLastKnownPowerState() (resp datatypes.Virtual_Guest_Power_State, err error) {
  	err = r.Session.DoRequest("SoftLayer_Virtual_Guest", "getLastKnownPowerState", nil, &r.Options, &resp)
  	return
  }
docs: // Retrieve The last known power state of a virtual guest in the event the guest is turned off outside of IMS or has gone offline.