I actually don’t use typescript myself, but I know this: ReactMeteorData is just a global variable, and I don’t see any reason why it can’t be put into an array literal like in the example. Got some code? What are you trying and what error does it give? If you have a repo, that’s the easiest way to see what’s going on.
Just because you are disregarding some errors doesn’t make you unsucessful !
I’m quite sure there must be a way to write some definition file to get the compiler to be aware of this.data, but my definition-fu and decorator-fu is not on par with the problem at hand.