code: function(options) {
        inputEx.SerializeField.superclass.setOptions.call(this, options);
     	this.options.className = options.className || 'inputEx-SerializedField';
  
  		this.options.subfield = options.subfield || {type: 'string'};
  		this.options.serializer = options.serializer || "json";
  	}
docs: Adds some options: subfield & serializer
  @param {Object} options Options object as passed to the constructor