code: function( value, noChangeEvent ) {
  				var children = this._.children,
  					item;
  				for ( var i = 0;
  				( i < children.length ) && ( item = children[ i ] ); i++ )
  					item.getElement().$.checked = ( item.getValue() == value );
  				!noChangeEvent && this.fire( 'change', { value: value } );
  			}
docs: Selects one of the radio buttons in this button group.
  
  @param {String} value The value of the button to be chcked.
  @param {Boolean} noChangeEvent Internal commit, to supress the `change` event on this element.