code: func (r Billing_Order_Item) GetRedundantPowerSupplyCount() (resp uint, err error) {
  	err = r.Session.DoRequest("SoftLayer_Billing_Order_Item", "getRedundantPowerSupplyCount", nil, &r.Options, &resp)
  	return
  }
docs: // Retrieve A count of power supplies contained within this SoftLayer_Billing_Order