func TransactionSetRequestURL(id int64, url string) (int, error) {
	curl := C.CString(url)
	defer C.free(unsafe.Pointer(curl))

	return errNo(C.newrelic_transaction_set_request_url(C.long(id), curl))
}
func TransactionSetRequestURL(id int64, url string) (int, error) {
	curl := C.CString(url)
	defer C.free(unsafe.Pointer(curl))

	return errNo(C.newrelic_transaction_set_request_url(C.long(id), curl))
}
/*
 * Set the request url of a transaction. The query part of the url is
 * automatically stripped from the url.
 *
 * @param transaction_id  id of transaction
 * @param request_url  request url for a web transaction
 * @return  0 on success, else negative warning code or error code
 */