text: from datastore import Datastore
  from immutable import List, Map, append, remove
  
  getChats, updateChats, subscribe = Datastore(List())
  
  def postChat(name, message):
  	updateChats(append(Map({
  		"name": name,
  		"message": message
  	})))
  
  	if name == 'Admin':
  		print(message)
  
  	if len(getChats()) > 20:
  		updateChats(remove(0))