reading km3net reconstructed events

As a result of the event reconstruction in km3net, the reconstructed direction of an event is written out to the file as a set of cartesian coordinates dir_x, dir_y, dir_z. It seems that this library still misses some function that reads km3net events as written out to the files by the reconstruction algorithms, and converts their coordinates to Zenith Azimuth...etc.

Where should this be implemented? I don't understand what is the structure of this repository, and which functionalities should be developed where. Is this library expected to read km3net-dataformat and use events therein? Looking into the coord.py file, I see that there's a class named Event, but I don't really understand what this class is supposed to do. From what I see in the code, an Event object has a member named n_evts. What is the logic behind this? How can an event have multiple events?