code: def seq_id():
      """
      Generate a short sequential id for layoutbox objects...
      """
  
      global _layoutboxobjnum
  
      return "%06d" % (next(_layoutboxobjnum))
  
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import itertools
  import kiwisolver
  import logging
  import numpy
  import warnings
  import matplotlib
label_desc: Use image node_id 18 for calling a global function with example usage: seq_id() and returns: unknown