code: function (object) {
              sjl.throwTypeErrorIfNotOfType(SjlMap.name, 'object', object, 'Object',
                  'Only `Object` types allowed.');
              var self = this,
                  entry,
                  objectIt = new ObjectIterator(object);
              while (objectIt.valid()) {
                  entry = objectIt.next();
                  self.set(entry.value[0], entry.value[1]);
              }
              return self;
          }
docs: Add all the `object`'s instance's own property key-value pairs to this instance.
  @method sjl.stdlib.SjlMap#addFromObject
  @param object {Object} - Object to operate on.
  @returns {SjlMap}