code: func (ns *Namespace) CountRunes(s interface{}) (int, error) {
  	ss, err := cast.ToStringE(s)
  	if err != nil {
  		return 0, _errors.Wrap(err, "Failed to convert content to string")
  	}
  
  	counter := 0
  	for _, r := range helpers.StripHTML(ss) {
  		if !helpers.IsWhitespace(r) {
  			counter++
  		}
  	}
  
  	return counter, nil
  }
docs: // CountRunes returns the number of runes in s, excluding whitepace.