After run `lua5.1 profiles/debug_example.lua`, I got result:
```
lua5.1: debug_example.lua:41: attempt to call field 'way_function' (a nil value)
stack traceback:
debug_example.lua:41: in main chunk
[C]: ?
```
This is because Debug has not way_function in the module. This changes
change it to process_way and it's works!!