How to use the photini.pyqt.QtCore.pyqtSlot function in Photini

    @QtCore.pyqtSlot(int)
    @catch_all
    def switch_album(self, index):
        self.select_album.emit(self.albums.itemData(index))

    @QtCore.pyqtSlot()
    @catch_all
    def _clicked(self):
        self.new_link.emit(self.name)

    @QtCore.pyqtSlot()
    @catch_all
    def editing_finished(self):
        self.new_value.emit(self, self.get_value())

    @QtCore.pyqtSlot(float, six.text_type)
    @catch_all
    def upload_progress(self, value, format_):
        self.total_progress.setValue(value)
        if format_:
            self.total_progress.setFormat(format_)

    @QtCore.pyqtSlot()
    @catch_all
    def save(self):
        super(ConfigStore, self).save()

    @QtCore.pyqtSlot(QtCore.QUrl)
    @catch_all
    def link_clicked(self, url):
        if url.isLocalFile():
            url.setScheme('http')
        QtGui.QDesktopServices.openUrl(url)

    @QtCore.pyqtSlot()
    @catch_all
    def path_format_finished(self):
        if self.source:
            self.config_store.set(
                self.config_section, 'path_format', self.nm.format_string)
        self.show_file_list()

    @QtCore.pyqtSlot()
    @catch_all
    def selection_changed(self):
        count = len(self.file_list_widget.selectedItems())
        self.selected_count.setText(
            translate('ImporterTab', '%n file(s)\nselected', '', count))
        if not self.file_copier:
            self.move_button.setEnabled(count > 0)
            self.copy_button.setEnabled(count > 0)

    @QtCore.pyqtSlot()
    def get_address(self):
        latlng = self.coords.get_value()
        self.JavaScript('reverseGeocode({})'.format(latlng))

    @QtCore.pyqtSlot()
    @catch_all
    def auto_creator(self):
        name = self.config_store.get('user', 'creator_name')
        if not name:
            name, OK = QtWidgets.QInputDialog.getText(
                self, translate('DescriptiveTab', 'Photini: input name'),
                translate('DescriptiveTab', "Please type in the creator's name"),
                text=self.config_store.get('user', 'copyright_name', ''))
            if OK and name:
                self.config_store.set('user', 'creator_name', name)
            else:
                name = ''
        for image in self.image_list.get_selected_images():
            image.metadata.creator = name
        self._update_widget('creator')