code: def test_get_interact_value():
      from ipywidgets.widgets import ValueWidget
      from traitlets import Unicode
  
      class TheAnswer(ValueWidget):
          _model_name = Unicode("TheAnswer")
          description = Unicode()
  
          def get_interact_value(self):
              return 42
  
      w = TheAnswer()
      c = interactive(lambda v: v, v=w)
      c.update()
      assert c.result == 42
  
imports: from __future__ import print_function
  import os
  from collections import OrderedDict
  import pytest
  import ipywidgets
  from traitlets import TraitError
  from ipywidgets import interact, interact_manual, interactive, interaction, Output
  from ipython_genutils.py3compat import annotate
  from .utils import setup, teardown
label_desc: Use image node_id 44 for calling a global function with example usage: test_get_interact_value() and returns: int