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