How to use the questionary.prompts.common.Separator function in questionary

return tokens

    layout = common.create_inquirer_layout(ic, get_prompt_tokens, **kwargs)

    bindings = KeyBindings()

    @bindings.add(Keys.ControlQ, eager=True)
    @bindings.add(Keys.ControlC, eager=True)
    def _(event):
        event.app.exit(exception=KeyboardInterrupt, style="class:aborting")

    if use_shortcuts:
        # add key bindings for choices
        for i, c in enumerate(ic.choices):
            if isinstance(c, Separator):
                continue

            # noinspection PyShadowingNames
            def _reg_binding(i, keys):
                # trick out late evaluation with a "function factory":
                # https://stackoverflow.com/a/3431699
                @bindings.add(keys, eager=True)
                def select_choice(event):
                    ic.pointed_at = i

            _reg_binding(i, c.shortcut_key)
    else:

        @bindings.add(Keys.Down, eager=True)
        @bindings.add("j", eager=True)
        def move_cursor_down(event):

def all(event):
        all_selected = True  # all choices have been selected
        for c in ic.choices:
            if (
                not isinstance(c, Separator)
                and c.value not in ic.selected_options
                and not c.disabled
            ):
                # add missing ones
                ic.selected_options.append(c.value)
                all_selected = False
        if all_selected:
            ic.selected_options = []

def __init__(self, line: Optional[Text] = None):
        """Create a separator in a list.

        Args:
            line: Text to be displayed in the list, by default uses `---`.
        """

        self.line = line or self.default_separator
        super(Separator, self).__init__(self.line, None, "-")

def is_selection_a_separator(self):
        selected = self.choices[self.pointed_at]
        return isinstance(selected, Separator)

def invert(event: Any):
        inverted_selection = [
            c.value
            for c in ic.choices
            if not isinstance(c, Separator)
            and c.value not in ic.selected_options
            and not c.disabled
        ]
        ic.selected_options = inverted_selection

def invert(event):
        inverted_selection = [
            c.value
            for c in ic.choices
            if not isinstance(c, Separator)
            and c.value not in ic.selected_options
            and not c.disabled
        ]
        ic.selected_options = inverted_selection