docs: public void sendMessageToAgents(String[] agent_name, String msgtype,
              Object message_content, Connector connector) {
          HashMap<String, Object> hm = new HashMap<String, Object>();
          hm.put("performative", msgtype);
          hm.put(SFipa.CONTENT, message_content);
          IComponentIdentifier[] ici = new IComponentIdentifier[agent_name.length];
          for (int i = 0; i < agent_name.length; i++) {
              ici[i] = (IComponentIdentifier) connector.getAgentID(agent_name[i]);
          }
          ((IMessageService) connector.getMessageService()).deliverMessage(hm,
                  "fipa", ici);
      }