code: def add_tab(self, title="Yeah!", block_events=True):
          
          self._widget.blockSignals(block_events)
  
          # create a widget to go in the tab
          tab = GridLayout()
          self.tabs.append(tab)
          tab.set_parent(self)
  
          # create and append the tab to the list
          self._widget.addTab(tab._widget, title)
  
          # try to lazy set the current tab
          if 'self' in self._lazy_load and self.get_tab_count() > self._lazy_load['self']:
              v = self._lazy_load.pop('self')
              self.set_current_tab(v)
  
          self._widget.blockSignals(False)
  
          return tab
docs: Adds a tab to the area, and creates the layout for this tab.