code: func (k Kind) IsRelational() bool {
  	switch k {
  	case KindIteration,
  		KindUser,
  		KindLabel,
  		KindBoardColumn,
  		KindArea,
  		KindRemoteTracker,
  		KindCodebase:
  		return true
  	}
  	return false
  }
docs: // IsRelational returns 'true' if the kind must be represented with a
  // relationship.