code: def _uniq_stable(elems):
      """uniq_stable(elems) -> list
  
      Return from an iterable, a list of all the unique elements in the input,
      maintaining the order in which they first appear.
  
      From ipython_genutils.data
      """
      seen = set()
      return [x for x in elems if x not in seen and not seen.add(x)]
  
imports: import os
  import re
  import socket
  import subprocess
  from subprocess import Popen, PIPE
  from warnings import warn
label_desc: Use image node_id 1 for calling a global function with example usage: _uniq_stable(elems) and returns: unknown