How to use the fire.inspectutils.GetFullArgSpec function in fire

# Get the command so far:
  if trace:
    command = trace.GetCommand()
    needs_separating_hyphen_hyphen = trace.NeedsSeparatingHyphenHyphen()
  else:
    command = None
    needs_separating_hyphen_hyphen = False

  if not command:
    command = ''

  # Build the continuations for the command:
  continued_command = command

  spec = inspectutils.GetFullArgSpec(component)
  metadata = decorators.GetMetadata(component)

  # Usage for objects.
  actions_grouped_by_kind = _GetActionsGroupedByKind(component, verbose=verbose)
  possible_actions = _GetPossibleActions(actions_grouped_by_kind)

  continuations = []
  if possible_actions:
    continuations.append(_GetPossibleActionsUsageString(possible_actions))

  availability_lines = _UsageAvailabilityLines(actions_grouped_by_kind)

  if callable(component):
    callable_items = _GetCallableUsageItems(spec, metadata)
    if callable_items:
      continuations.append(' '.join(callable_items))

def HelpText(component, trace=None, verbose=False):
  """Gets the help string for the current component, suitalbe for a help screen.

  Args:
    component: The component to construct the help string for.
    trace: The Fire trace of the command so far. The command executed so far
      can be extracted from this trace.
    verbose: Whether to include private members in the help screen.

  Returns:
    The full help screen as a string.
  """
  # Preprocessing needed to create the sections:
  info = inspectutils.Info(component)
  actions_grouped_by_kind = _GetActionsGroupedByKind(component, verbose=verbose)
  spec = inspectutils.GetFullArgSpec(component)
  metadata = decorators.GetMetadata(component)

  # Sections:
  name_section = _NameSection(component, info, trace=trace, verbose=verbose)
  synopsis_section = _SynopsisSection(
      component, actions_grouped_by_kind, spec, metadata, trace=trace)
  description_section = _DescriptionSection(component, info)
  # TODO(dbieber): Add returns and raises sections for functions.

  if callable(component):
    args_and_flags_sections, notes_sections = _ArgsAndFlagsSections(
        info, spec, metadata)
  else:
    args_and_flags_sections = []
    notes_sections = []
  usage_details_sections = _UsageDetailsSections(component,

For example, mycmd.py --help instead of mycmd.py -- --help.

  Args:
    component_trace: (FireTrace) The trace for the Fire command.
    remaining_args: List of remaining args that haven't been consumed yet.
  Returns:
    True if help is requested, False otherwise.
  """
  show_help = False
  if remaining_args:
    target = remaining_args[0]
    if target in ('-h', '--help'):
      # Check if --help would be consumed as a keyword argument, or is a member.
      component = component_trace.GetResult()
      if inspect.isclass(component) or inspect.isroutine(component):
        fn_spec = inspectutils.GetFullArgSpec(component)
        _, remaining_kwargs, _ = _ParseKeywordArgs(remaining_args, fn_spec)
        show_help = target in remaining_kwargs
      else:
        members = dict(inspect.getmembers(component))
        show_help = target not in members

  if show_help:
    component_trace.show_help = True
    command = '{cmd} -- --help'.format(cmd=component_trace.GetCommand())
    print('INFO: Showing help with the command {cmd}.\n'.format(
        cmd=pipes.quote(command)), file=sys.stderr)
  return show_help