src/views/Feed/FeedSummary.js
function FeedSummary(props) {
  const { children, className, content, date, user } = props

  const classes = cx('summary', className)
  const rest = getUnhandledProps(FeedSummary, props)
  const ElementType = getElementType(FeedSummary, props)

  if (!childrenUtils.isNil(children)) {
    return (
      <ElementType {...rest} className={classes}>
        {children}
      </ElementType>
    )
  }

  return (
    <ElementType {...rest} className={classes}>
      {createShorthand(FeedUser, val => ({ content: val }), user, { autoGenerateKey: false })}
      {content}
      {createShorthand(FeedDate, val => ({ content: val }), date, { autoGenerateKey: false })}
    </ElementType>
  )
}
function FeedSummary(props) {
  const { children, className, content, date, user } = props

  const classes = cx('summary', className)
  const rest = getUnhandledProps(FeedSummary, props)
  const ElementType = getElementType(FeedSummary, props)

  if (!childrenUtils.isNil(children)) {
    return (
      <ElementType {...rest} className={classes}>
        {children}
      </ElementType>
    )
  }

  return (
    <ElementType {...rest} className={classes}>
      {createShorthand(FeedUser, val => ({ content: val }), user, { autoGenerateKey: false })}
      {content}
      {createShorthand(FeedDate, val => ({ content: val }), date, { autoGenerateKey: false })}
    </ElementType>
  )
}
A feed can contain a summary.