code: function listeners(type) {
        var object = this,
            events = object.events || (object.events = {});
  
        return _.has(events, type) ? events[type] : (events[type] = []);
      }
docs: Returns an array of event listeners for a given type that can be manipulated
  to add or remove listeners.
  
  @memberOf Benchmark, Benchmark.Suite
  @param {string} type The event type.
  @returns {Array} The listeners array.