The .json files are from https://github.com/obriensp/iWorkFileFormat the original README appears below. I tweaked them to be valid json, ran codegen on them, and added the cleaned up output to the index package.

Original Readme

These .json files were created from Keynote 6.0, Pages 5.0 and Numbers 3.0. They were created by attaching to the running applications using F-Script and evaluating this expression:

> TSPRegistry sharedRegistry

The resulting output was then manually cleaned up and organized.