code: def feed_interval_delete(feed_id, parameters):
  	'Invalidate cached adaptive interval value.'
  	cache.delete(getkey( T_INTERVAL,
  		key=feed_interval_key(feed_id, parameters) )f feed_interval_delete(feed_id, parameters):
  	'Invalidate cached adaptive interval value.'
  	cache.delete(getkey( T_INTERVAL,
  		key=feed_interval_key(feed_id, parameters) ))
docs: Invalidate cached adaptive interval value.