How to use the imgui.end_main_menu_bar function in imgui

def update(dt):
        imgui.new_frame()
        if imgui.begin_main_menu_bar():
            if imgui.begin_menu("File", True):

                clicked_quit, selected_quit = imgui.menu_item(
                    "Quit", 'Cmd+Q', False, True
                )

                if clicked_quit:
                    exit(1)

                imgui.end_menu()
            imgui.end_main_menu_bar()

        imgui.show_test_window()

        imgui.begin("Custom window", True)
        imgui.text("Bar")
        imgui.text_colored("Eggs", 0.2, 1., 0.)
        imgui.end()

def on_frame():
    if imgui.begin_main_menu_bar():
        if imgui.begin_menu("File", True):
            clicked_quit, selected_quit = imgui.menu_item(
                "Quit", 'Cmd+Q', False, True
            )
            if clicked_quit:
                exit(1)
            imgui.end_menu()
        imgui.end_main_menu_bar()
    imgui.show_test_window()
    imgui.begin("Custom window", True)
    imgui.text("Bar")
    imgui.text_colored("Eggs", 0.2, 1., 0.)
    imgui.end()

def render_ui(self):
        imgui.new_frame()
        if imgui.begin_main_menu_bar():
            if imgui.begin_menu("File", True):

                clicked_quit, selected_quit = imgui.menu_item(
                    "Quit", 'Cmd+Q', False, True
                )

                if clicked_quit:
                    exit(1)

                imgui.end_menu()
            imgui.end_main_menu_bar()

        imgui.show_test_window()

        imgui.begin("Custom window", True)
        imgui.text("Bar")
        imgui.text_colored("Eggs", 0.2, 1., 0.)
        imgui.end()

        imgui.render()
        self.imgui.render(imgui.get_draw_data())

imgui.new_frame()
        push_settings()

        if imgui.begin_main_menu_bar():
            (show_save_as, show_load_db) = draw_file_menu(show_save_as, show_load_db)

            # draw window menu
            if imgui.begin_menu("Window", True):
                for key in SHOW_VARS:
                    _, SHOW_VARS[key] = imgui.menu_item(
                        "Show " + key.title() + " View", selected=SHOW_VARS[key]
                    )

                imgui.end_menu()

            imgui.end_main_menu_bar()

        # if the menu triggered a popup, keep the popup on until we say otherwise
        if show_load_db:
            imgui.open_popup("load-db")
        if show_save_as:
            imgui.open_popup("save-as")


        # draw menu popups
        new_name = draw_ok_cancel_popup("save-as", "File Name to Save As:")
        if not new_name is None:
            if new_name:
                database_name = new_name
                eav.save_to_file(DB, database_name)
            show_save_as = False