code: func (ns *Namespace) Base64Decode(content interface{}) (string, error) {
  	conv, err := cast.ToStringE(content)
  	if err != nil {
  		return "", err
  	}
  
  	dec, err := base64.StdEncoding.DecodeString(conv)
  	return string(dec), err
  }
docs: // Base64Decode returns the base64 decoding of the given content.