code: def testHelpTextEmptyList(self):
      component = []
      help_screen = helptext.HelpText(
          component=component, trace=trace.FireTrace(component, "list")
      )
      self.assertIn("NAME\n    list", help_screen)
      self.assertIn("SYNOPSIS\n    list COMMAND", help_screen)
      # TODO(zuhaochen): Change assertion after custom description is
      # implemented for list type.
      self.assertNotIn("DESCRIPTION", help_screen)
      # We don't check the listed commands either since the list API could
      # potentially change between Python versions.
      self.assertIn(
          "COMMANDS\n    COMMAND is one of the following:\n",
          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 15 for calling the HelpTest obj's underlying member method code with example usage: obj.testHelpTextEmptyList() without return types