skel

////////////////////////////////////////////////////////////////////
//       Class : BasicSkel
// Description : This is the most basic of the skeleton classes.
//               It stores an integer, and will return it on request.
//
//               The skeleton classes are intended to help you learn
//               how to add C++ classes to panda.  See also the manual,
//               "Adding C++ Classes to Panda."
////////////////////////////////////////////////////////////////////

where is “Adding C++ Classes to Panda.”?

I forgot to write it.