docs: def bring_tab_to_the_top(self, tab_label):
          """Find tab with label tab_label in list of notebook's and set it to the current page.
  
          :param tab_label: String containing the label of the tab to be focused
          """
          page = self.page_dict[tab_label]
          for notebook in self.notebook_names:
              page_num = self[notebook].page_num(page)
              if not page_num == -1:
                  self[notebook].set_current_page(page_num)
                  break