code: def unique(lst):
      """
      Return a list without repeated entries (first occurrence is kept),
      preserving order.
      """
      seen = set()
      new_lst = []
      for item in lst:
          if item in seen:
              continue
          seen.add(item)
          new_lst.append(item)
      return new_lst
  
imports: import itertools
  import json
  import os
  from stat import ST_MTIME
  import argparse
  import re
  import textwrap
  import numpy
label_desc: Use image node_id 14 for calling a global function with example usage: unique(lst) and returns: new_lst