code: func (ns *Namespace) Base64Encode(content interface{}) (string, error) {
  	conv, err := cast.ToStringE(content)
  	if err != nil {
  		return "", err
  	}
  
  	return base64.StdEncoding.EncodeToString([]byte(conv)), nil
  }
docs: // Base64Encode returns the base64 encoding of the given content.