code: public void broadcastLocal(String name, Tree payload, Groups groups) {
  		eventbus.broadcast(name, payload, groups, true);
  	}
docs: Emits a <b>LOCAL</b> event to <b>ALL</b> listeners from the specified
  event group(s), who are listening this event. Sample code:<br>
  <br>
  Tree params = new Tree();<br>
  params.put("a", true);<br>
  params.putList("b").add(1).add(2).add(3);<br>
  ctx.broadcastLocal("user.created", params, Groups.of("group1",
  "group2"));
  
  @param name
  name of event (eg. "user.modified")
  @param payload
  {@link Tree} structure (payload of the event)
  @param groups
  {@link Groups event group} container