code: def test_fixed():
      c = interactive(f, a=widgets.fixed(5), b="text")
      assert len(c.children) == 2
      w = c.children[0]
      check_widget(
          w,
          cls=widgets.Text,
          value="text",
          description="b",
      )
  
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 32 for calling a global function with example usage: test_fixed() without return types