code: func (ns *Namespace) ContainsAny(s, chars interface{}) (bool, error) {
  	ss, err := cast.ToStringE(s)
  	if err != nil {
  		return false, err
  	}
  
  	sc, err := cast.ToStringE(chars)
  	if err != nil {
  		return false, err
  	}
  
  	return _strings.ContainsAny(ss, sc), nil
  }
docs: // ContainsAny reports whether any Unicode code points in chars are within s.