code: func (signingKeys *SigningKeyList) GPGASCIIArmor() string {
  	keys := []string{}
  
  	for _, gpgKey := range signingKeys.GPGKeys {
  		keys = append(keys, gpgKey.ASCIIArmor)
  	}
  
  	return strings.Join(keys, "\n")
  }
docs: // GPGASCIIArmor returns an ASCII-armor-formatted string for all of the gpg
  // keys in the response.