text: from .UpdateHandler import UpdateHandler
  from .ContextBuilder import ContextBuilder
  
  
  class ContextUpdateHandler(ContextBuilder, UpdateHandler):
  
      def __init__(self, context_engine):
          ContextBuilder.__init__(self, context_engine)
          UpdateHandler.__init__(self)
  
      def before(self, update):
          self.build_context(update)
  
      def after(self, update):
          self.save_context(update)
  