code: def deup(src_file, tgt_file, src_file_out, tgt_file_out):
      seen = set()
      dup_count = 0
      with open(src_file, encoding="utf-8") as fsrc, open(
          tgt_file, encoding="utf-8"
      ) as ftgt, open(
          src_file_out, "w", encoding="utf-8"
      ) as fsrc_out, open(
          tgt_file_out, "w", encoding="utf-8"
      ) as ftgt_out:
          for s, t in zip(fsrc, ftgt):
              if (s, t) not in seen:
                  fsrc_out.write(s)
                  ftgt_out.write(t)
                  seen.add((s, t))
              else:
                  dup_count += 1
      print(f"number of duplication: {dup_count}")
  
label_desc: Use image node_id 1 for calling a global function with example usage: deup(src_file, tgt_file, src_file_out, tgt_file_out) without return types