About AutoCompletion

[zhouyusd]

var langTools = window.ace.acequire("ace/ext/language_tools");
var flowCompleter = {
      getCompletions: function (editor, session, pos, prefix, callback) {

          callback(null, [
              {
                  caption: 'include',
                  meta: 'keyword',
                  value: 'include',
               }
           ])
       }
}
langTools.addCompleter(flowCompleter);

I added some keywords I want to distinguish between languages. What should I do