code: def is_hop_by_hop(header_name):
      """Return true if 'header_name' is an HTTP/1.1 "Hop-by-Hop" header"""
      return _hoppish(header_name.lower())
  
file_path: catboost/contrib/tools/python3/src/Lib/wsgiref/util.py
imports: import posixpath
label_desc: Use image node_id 6 for calling a global function with example usage: is_hop_by_hop(header_name) and returns: _hoppish