here, I found a nice example of sandpit.
However, where can I find it?
is it a special prototpye, which has to be installed by the moodle admins?
Or can I get the xml file by myself to create the prototype.
On https://github.com/search?q=repo%3Atrampgeek%2Fmoodle-qtype_coderunner%20sandpit&type=code the word sandpit is only found in the changehistory.md