code: function(element, event, callback, capturePhase) {
      if (!element.id) element.id = $.uuid()
      if (!ChuiEventCache.elements[element.id]) {
        ChuiEventCache.elements[element.id] = []
      }
      ChuiEventCache.elements[element.id].push({
        event: event,
        callback: callback
      })
      element.addEventListener(event, callback, capturePhase)
    }
docs: Private method to set events on ChuiEventCache