code: def iscommentline(line: str) -> bool:
      c = line.lstrip()[:1]
      return c in COMMENTCHARS
  
file_path: catboost/contrib/python/iniconfig/iniconfig/_parse.py
imports: from __future__ import annotations
  from .exceptions import ParseError
  from typing import NamedTuple
label_desc: Use image node_id 3 for calling a global function with example usage: iscommentline(line) and returns: unknown