code: func (cmps *CountryMessagingPriceService) GetPageIterator(data url.Values) *CountryPricePageIterator {
  	iter := NewPageIterator(cmps.client, data, messagingPathPart+"/Countries")
  	return &CountryPricePageIterator{
  		p: iter,
  	}
  }
docs: // GetPageIterator returns an iterator which can be used to retrieve pages.