Nice! If you have any questions feel free to join our IRC channel (#indico on freenode) or ask here.
Also, to test it, you might want to install Indico locally - instructions on how to setup a local development environment can be found here.
Regarding your second comment: A quick search shows that the function is defined in indico/modules/events/contributions/util.py.
To actually use it from the UI, you need to create an event (type "conference"), then go to the "Contributions" page in the management area, and click on "Import".