code: func (r Billing_Item_Cancellation_Reason_Category) GetBillingCancellationReasons() (resp []datatypes.Billing_Item_Cancellation_Reason, err error) {
  	err = r.Session.DoRequest("SoftLayer_Billing_Item_Cancellation_Reason_Category", "getBillingCancellationReasons", nil, &r.Options, &resp)
  	return
  }
docs: // Retrieve The corresponding billing cancellation reasons having the specific billing cancellation reason category.