code: func (r Billing_Item_Virtual_DedicatedHost) GetBundleItems() (resp []datatypes.Product_Item_Bundles, err error) {
  	err = r.Session.DoRequest("SoftLayer_Billing_Item_Virtual_DedicatedHost", "getBundleItems", nil, &r.Options, &resp)
  	return
  }
docs: // Retrieve A Billing Item's bundled billing items