code: def is_zipfile(filename):
      return is_archive(filename, formats=("zip",))
  
imports: import os, time
  from libarchive import is_archive, Entry, SeekableArchive
  from zipfile import ZIP_STORED, ZIP_DEFLATED
label_desc: Use image node_id 1 for calling a global function with example usage: is_zipfile(filename) and returns: is_archive