[Gc] Leak detector for libjansson

[Илья Нечёса]

Good afternoon. Sorry for bad English. I would like to ask a question 
about leak getector gc for libjansson.
In my project, I use a lot of objects jansson and that need to monitor. 
When creating an object jansson allocated memory which is then freed 
with json_decref(). You could not tell how can you use your leak 
detector for objects libjansson? Thank you in advance for your response.
Sincerely, Ilya Nechoysa