code: def testHelpTextFunction(self):
      component = tc.NoDefaults().double
      help_screen = helptext.HelpText(
          component=component,
          trace=trace.FireTrace(component, name="double"),
      )
      self.assertIn("NAME\n    double", help_screen)
      self.assertIn("SYNOPSIS\n    double COUNT", help_screen)
      self.assertNotIn("DESCRIPTION", help_screen)
      self.assertIn("POSITIONAL ARGUMENTS\n    COUNT", help_screen)
      self.assertIn(
          "NOTES\n    You can also use flags syntax for POSITIONAL ARGUMENTS",
          help_screen,
      )
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import os
  import sys
  import textwrap
  from fire import formatting
  from fire import helptext
  from fire import test_components
  from fire import testutils
  from fire import trace
  import six
label_desc: Use image node_id 4 for calling the HelpTest obj's underlying member method code with example usage: obj.testHelpTextFunction() without return types