where does the proto files come from?

[lenLRX]

I was parsing dota2 replays using clarity. And I found proto files in this project useful, especially meaning of enums.
But some info is still missing, for example the meaning and range of rune types.
Thus I am curious where does this info comes from and if I can get more/latest info by my self.

[Delaunay]

You can get them here

[lenLRX]

You can get them here

Got it! Thanks