!7

standardBot1 EAMBot {
  sync S processSimplifiedLine(S s, O... _) {
    try answer super.processSimplifiedLine(s, _);
    
    if ((s = dropMyPrefixOrNull(s)) == null) null;
    
    optPar MessageChannel channel;
    
    if "export" {
      MessageHistory history = channel.getHistory();
      history.retrievePast(100).queue(msgs -> {
        postMsgs(channel, msgs);
        history.retrievePast(100).queue(msgs -> 
          postMsgs(channel, msgs),
          onQueueError);
        }, onQueueError);
      null;
    }
    
    null;
  }
  
  void postMsgs(MessageChannel channel, L<Message> msgs) {
    postInChannel(channel, linesLL(
      "Got " + nMessages(msgs) + ".",
      first(msgs),
      "...",
      last(msgs)
    ));
  }
}