code: def show_tooltip(self, title, text, color=_DEFAULT_TITLE_COLOR,
                       at_line=None, at_position=None, at_point=None):
          
          if text is not None and len(text) != 0:
              # Find position of calltip
              point = self._calculate_position(
                  at_line=at_line,
                  at_position=at_position,
                  at_point=at_point,
              )
  
              # Format text
              tiptext = self._format_text(title, text, color, ellide=True)
  
              self._update_stylesheet(self.tooltip_widget)
  
              # Display tooltip
              self.tooltip_widget.show_tip(point, tiptext)
              self.tooltip_widget.show()
docs: Show tooltip.
  
          Tooltips will disappear if mouse hovers them. They are meant for quick
          inspections.