code: def iscntrl(c):
      return 0 <= _ctoi(c) <= 31 or _ctoi(c) == 127
  
file_path: catboost/contrib/tools/python3/src/Lib/curses/ascii.py
label_desc: Use image node_id 6 for calling a global function with example usage: iscntrl(c) and returns: unknown