Is there a public online documentation for FreeSWITCH C internals?

Is there a public online documentation for FreeSWITCH C internals?

Came across the Debug Printing section in the docs where all info links point to https://docs.freeswitch.org/ (e.g., https://docs.freeswitch.org/switch__swigable__cpp_8h.html), but it doesn't seem to be publicly available anymore.