new_contents: from txircd.modbase import Mode
  
  class ServerNoticeMode(Mode):
  	pass
  
  class Spawner(object):
  	def __init__(self, ircd):
  		self.ircd = ircd
  	
  	def spawn(self):
  		return {
  			"modes": {
  				"uns": ServerNoticeMode()
  			}
  		}
  	
  	def cleanup(self):
  		self.ircd.removeMode("uns")
subject: Implement usermode +s (currently doesn't do anything)