code: func (r Network_Storage_Iscsi) SetSnapshotAllocation(capacityGb *int) (err error) {
  	var resp datatypes.Void
  	params := []interface{}{
  		capacityGb,
  	}
  	err = r.Session.DoRequest("SoftLayer_Network_Storage_Iscsi", "setSnapshotAllocation", params, &r.Options, &resp)
  	return
  }
docs: // no documentation yet