code: function rename(object, fromKey, toKey) {
    if ((0, _has2.default)(object, fromKey)) {
      object[toKey] = object[fromKey];
      delete object[fromKey];
    }
  }
docs: Renames specified attributes if present.
  
  @memberof module:jsx
  @private
  @method rename
  @param {Object} object  - the object to perform replacements on
  @param {string} fromKey - a key to look for
  @param {string} toKey   - a key to rename to