How to use the ptpython.layout.CompletionVisualisation.MULTI_COLUMN function in ptpython

# Override prompt style.
        self.python_input.all_prompt_styles['pdb'] = PdbPromptStyle(self._get_current_pdb_commands())
        self.python_input.prompt_style = 'pdb'

        # Override exit message.
        self.python_input.exit_message = 'Do you want to quit BDB? This raises BdbQuit.'

        # Set UI styles.
        self.python_input.ui_styles = {
            'ptpdb': get_ui_style(),
        }
        self.python_input.use_ui_colorscheme('ptpdb')

        # Set autocompletion style. (Multi-column works nicer.)
        self.python_input.completion_visualisation = CompletionVisualisation.MULTI_COLUMN

        # Load additional key bindings.
        load_custom_pdb_key_bindings(self, self.python_input.key_bindings_registry)

        self.cli = CommandLineInterface(
            eventloop=create_eventloop(),
            application=self.python_input.create_application())

    return Condition(lambda: python_input.completion_visualisation == CompletionVisualisation.MULTI_COLUMN)

get_values=lambda: {
                           CompletionVisualisation.NONE: lambda: enable('completion_visualisation', CompletionVisualisation.NONE),
                           CompletionVisualisation.POP_UP: lambda: enable('completion_visualisation', CompletionVisualisation.POP_UP),
                           CompletionVisualisation.MULTI_COLUMN: lambda: enable('completion_visualisation', CompletionVisualisation.MULTI_COLUMN),
                           CompletionVisualisation.TOOLBAR: lambda: enable('completion_visualisation', CompletionVisualisation.TOOLBAR),
                       }),

self.history = ThreadedHistory(FileHistory(history_filename))
        else:
            self.history = InMemoryHistory()

        self._input_buffer_height = _input_buffer_height
        self._extra_layout_body = _extra_layout_body or []
        self._extra_toolbars = _extra_toolbars or []
        self._extra_buffer_processors = _extra_buffer_processors or []

        self.extra_key_bindings = extra_key_bindings or KeyBindings()

        # Settings.
        self.show_signature = False
        self.show_docstring = False
        self.show_meta_enter_message = True
        self.completion_visualisation = CompletionVisualisation.MULTI_COLUMN
        self.completion_menu_scroll_offset = 1

        self.show_line_numbers = False
        self.show_status_bar = True
        self.wrap_lines = True
        self.complete_while_typing = True
        self.paste_mode = False  # When True, don't insert whitespace after newline.
        self.confirm_exit = True  # Ask for confirmation when Control-D is pressed.
        self.accept_input_on_enter = 2  # Accept when pressing Enter 'n' times.
                                        # 'None' means that meta-enter is always required.
        self.enable_open_in_editor = True
        self.enable_system_bindings = True
        self.enable_input_validation = True
        self.enable_auto_suggest = False
        self.enable_mouse_support = False
        self.enable_history_search = False  # When True, like readline, going

def configure(repl):
    """
    Configuration method. This is called during the start-up of ptpython.

    :param repl: `PythonRepl` instance.
    """
    # Show function signature (bool).
    repl.show_signature = True
    # Show docstring (bool).
    repl.show_docstring = True
    # inserts a newline instead of executing the code.
    repl.show_meta_enter_message = True
    # Show completions. (NONE, POP_UP, MULTI_COLUMN or TOOLBAR)
    repl.completion_visualisation = CompletionVisualisation.MULTI_COLUMN
    # When CompletionVisualisation.POP_UP has been chosen, use this
    # scroll_offset in the completion menu.
    repl.completion_menu_scroll_offset = 0

    # Show line numbers (when the input contains multiple lines.)
    repl.show_line_numbers = False
    # Show status bar.
    repl.show_status_bar = True
    # When the sidebar is visible, also show the help text.
    repl.show_sidebar_help = True
    # Highlight matching parethesis.
    repl.highlight_matching_parenthesis = True
    # Line wrapping. (Instead of horizontal scrolling.)
    repl.wrap_lines = True
    # Mouse support.
    repl.enable_mouse_support = False