How to use the gooey.gui.events function in Gooey

self.SetDoubleBuffered(True)

    self.sidebar = Sidebar(self, contents=self._build_spec['widgets'].keys())

    self.config_panels = self.build_panels(self._build_spec)
    self.active_panel = self.config_panels.keys()[0]
    self.config_panels[self.active_panel].Show()

    sizer = wx.BoxSizer(wx.HORIZONTAL)
    sizer.Add(self.sidebar, 1, wx.EXPAND)
    sizer.Add(wx_util.vertical_rule(self), 0, wx.EXPAND)
    for panel in self.config_panels.values():
      sizer.Add(panel, 3, wx.EXPAND)
    self.SetSizer(sizer)

    pub.subscribe(self.load_view,   events.PANEL_CHANGE)

def _init_components(self):
        self.cancel_button = self.button(_('cancel'), wx.ID_CANCEL, event_id=events.WINDOW_CANCEL)
        self.stop_button = self.button(_('stop'), wx.ID_OK, event_id=events.WINDOW_STOP)
        self.start_button = self.button(_('start'), wx.ID_OK, event_id=int(events.WINDOW_START))
        self.close_button = self.button(_("close"), wx.ID_OK, event_id=int(events.WINDOW_CLOSE))
        self.restart_button = self.button(_('restart'), wx.ID_OK, event_id=int(events.WINDOW_RESTART))
        self.edit_button = self.button(_('edit'), wx.ID_OK, event_id=int(events.WINDOW_EDIT))

        self.progress_bar = wx.Gauge(self, range=100)

        self.buttons = [self.cancel_button, self.start_button,
                        self.stop_button, self.close_button,
                        self.restart_button, self.edit_button]

        if self.buildSpec['disable_stop_button']:
            self.stop_button.Enable(False)

def __init__(self, view, model):
    self.view = view
    self.model = model

    self.client_runner = ProcessController(
      self.model.progress_regex,
      self.model.progress_expr
    )

    pub.subscribe(self.on_cancel, events.WINDOW_CANCEL)
    pub.subscribe(self.on_stop, events.WINDOW_STOP)
    pub.subscribe(self.on_start, events.WINDOW_START)
    pub.subscribe(self.on_restart,  events.WINDOW_RESTART)
    pub.subscribe(self.on_edit, events.WINDOW_EDIT)
    pub.subscribe(self.on_close, events.WINDOW_CLOSE)

    # console statuses from the other thread
    pub.subscribe(self.on_new_message, 'console_update')
    pub.subscribe(self.on_progress_change, 'progress_update')
    pub.subscribe(self.on_client_done, 'execution_complete')


    pub.subscribe(self.on_selection_change, events.LIST_BOX)