code: def testHelpScreenForFunctionFunctionWithDefaultArgs(self):
      component = tc.WithDefaults().double
      t = trace.FireTrace(component, name="double")
      help_output = helptext.HelpText(component, t)
      expected_output = """
      NAME
          double - Returns the input multiplied by 2.
  
      SYNOPSIS
          double <flags>
  
      DESCRIPTION
          Returns the input multiplied by 2.
  
      FLAGS
          -c, --count=COUNT
              Default: 0
              Input number that you want to double."""
      self.assertEqual(
          textwrap.dedent(expected_output).strip(), help_output.strip()
      )
  
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 24 for calling the HelpTest obj's underlying member method code with example usage: obj.testHelpScreenForFunctionFunctionWithDefaultArgs() without return types