text: let Responder = require('../').Responder;
  
  // Instantiate a new Responder component.
  let randomResponder = new Responder({
      name: 'randomRep',
      namespace: 'rnd',
      respondsTo: ['randomRequest'], // types of requests this responder
      							  // can respond to.
  });
  
  // request handlers are like any event handler.
  randomResponder.on('randomRequest', function(req, cb) {
      let answer = ~~(Math.random() * 10);
      console.log('request', req.val, 'answering with', answer);
      cb(answer);
  });
  