code: public void forward(MessageEnvelope envelope) {
  		List<FbBot> bots = FbBotMillContext.getInstance().getRegisteredBots();
  		for (FbBot b : bots) {
  			b.processMessage(envelope);
  		}
  	}
docs: Forwards an envelope to the registered bots.
  
  @param envelope
  the envelope to forward.