Change `EventType` to an interface with a type argument#110

Merged

Arcath merged 2 commits intomasterfrom event-data-as-interface

Dec 19, 2018

+126-162

Commits on Dec 10, 2018

add a type argument to EventItem and type the data from it
Arcath
committed

Commits on Dec 18, 2018

improve the index typing of EventData
Arcath
committed