Added reference to piwik-api to comment.
@@ -22,6 +22,10 @@ const trackerUrl = baseUrl + 'piwik.php'
* calls to the `_paq` array, that the tracker reads from
* when starting up. After that startup it calls the functions
* directly on the tracker (as the `_paq` array isn't read then anymore)
+ *
+ * available calls can be found at:
+ * https://developer.piwik.org/api-reference/tracking-javascript
+ *
* @param args
*/
function piwikCall(args) {
