message: [Placeholder] Support restProps
diff: @@ -21,10 +21,19 @@ export interface PlaceholderProps extends HTMLAttributes<HTMLDivElement> {
  }
  const Placeholder: FunctionComponent<PlaceholderProps> = (props) => {
  - const { className, icon, header, action, children, stretched } = props;
  + const {
  + className,
  + icon,
  + header,
  + action,
  + children,
  + stretched,
  + ...restProps
  + } = props;
  return (
  <div
  + {...restProps}
  className={classNames('Placeholder', {
  'Placeholder--stretched': stretched,
  }, className)}
  