Всё наоборот. Нужно сделать подобие рефлекшена.
Т.е. на входе С++ классы. А на выходе *.ts.

Let me outline again the idea of this task: imagine you are given a set of C++ classes and want to create automated bindings for another language, in this case javascript. The goal is to have a simple way to produce *.ts definitions according to the C++ classes in a simple way for the user of your library. In the context of this challenge, the goal is to have a unit test running that matches the output of your object registry exactly to the „.ts“ file, not the other way around. That file is only there for testing.

Всё наоборот. Нужно сделать подобие рефлекшена. Дана уже какая-то объектная модель.
Т.е. на входе С++ классы. А на выходе *.ts.