if possible make a sub category public but parent is private ?

hi all, as topic, I just want make a sub category is public but parent or others is still private ?

another issue

RecursionError at /categories/
maximum recursion depth exceeded in comparison
Request Method: GET
Request URL:    http://127.0.0.1:8000/categories/?ref=login
Django Version: 2.2.12
Exception Type: RecursionError
Exception Value:    
maximum recursion depth exceeded in comparison
Exception Location: lib/python3.6/site-packages/rest_framework/relations.py in __init__, line 254
Python Executable:  /bin/python
Python Version: 3.6.5

what is max node level of category? anyone help ? thanks

I got a solution ...

sys.setrecursionlimit(1500)

stackoverflow.com/questions/3323001/what-is-the-maximum-recursion-depth-in-python-and-how-to-increase-it