text: var sayHello = function() { console.log('Hello to you') };
  var sayGoodbye = function() { console.log('Good Bye !!! ')}
  var EventEmitter = require('events').EventEmitter;
  emitter = new  EventEmitter(0;
  emitter = new  EventEmitter();
  emitter = new  EventEmitter();
  emitter.on('hello',sayHello)
  emitter.on('goodbye',sayGoodbye)
  emitter.emit('hello')
  emitter.emit('goodbye');
  global.emitter._events
  