code: def remember(empowered, powerupClass, interface):
      
      className = fullyQualifiedName(powerupClass)
      powerup = _StoredByName(store=empowered.store, className=className)
      empowered.powerUp(powerup, interface)
docs: Adds a powerup to ``empowered`` that will instantiate ``powerupClass``
      with the empowered's store when adapted to the given interface.
  
      :param empowered: The Empowered (Store or Item) to be powered up.
      :type empowered: ``axiom.item.Empowered``
      :param powerupClass: The class that will be powered up to.
      :type powerupClass: class
      :param interface: The interface of the powerup.
      :type interface: ``zope.interface.Interface``
      :returns: ``None``