code: def get_do_show():
      rval = int(os.getenv("HYPEROPT_SHOW", "0"))
      print("do_show =", rval)
      return rval
  
file_path: hyperopt/hyperopt/tests/unit/test_plotting.py
imports: import unittest
  import os
  from hyperopt import Trials
  import hyperopt.plotting
  from hyperopt import rand, fmin
  from .test_domains import many_dists
label_desc: Use image node_id 1 for calling a global function with example usage: get_do_show() and returns: rval