code: def restore_text_cursor_anchor(self):
          
  
          if not self.__text_cursor_anchor:
              return False
  
          text_cursor, horizontal_scroll_bar_slider_position, vertical_scroll_bar_slider_position = self.__text_cursor_anchor
          self.setTextCursor(text_cursor)
          self.horizontalScrollBar().setSliderPosition(horizontal_scroll_bar_slider_position)
          self.verticalScrollBar().setSliderPosition(vertical_scroll_bar_slider_position)
          return True
docs: Restores the document cursor anchor.
  
          :return: Method success.
          :rtype: bool