code: function(node, callback) {
          var elements = this.elements,
              el,
              id = $(node).cache('toolkit.cid', function() {
                  return Math.random().toString(32).substr(2);
              });
  
          if (elements[id]) {
              el = elements[id];
          } else {
              el = elements[id] = this.createElement(node);
  
              if ($.type(callback) === 'function') {
                  callback.call(this, el);
              }
          }
  
          return this.element = el;
      }
docs: Attempt to find and return an element by a unique composite ID.
  Each element is unique per node. If the element does not exist, create it.
  
  @param {jQuery} node
  @param {Function} [callback]   - Callback to trigger once an element is created
  @returns {jQuery}