return attachments.stream().map(a -> {
final String file = a.containsKey("file") ? getValue(a, "file") : null;
return new MessageEnvelope.Data.Attachment(a.containsKey("remoteId")
return attachments.stream().map(a -> {
final String file = a.containsKey("file") ? getValue(a, "file") : null;
return new MessageEnvelope.Data.Attachment(a.containsKey("remoteId")