static long waitForBotStartUp_timeoutSeconds = 60;

// returns address or fails
static S waitForBotStartUp(S botName) {
  for (int i = 0; i < waitForBotStartUp_timeoutSeconds; i++) {
    sleepSeconds(i == 0 ? 0 : 1);
    S addr = getBotAddress(botName);
    if (addr != null)
      return addr;
  }
  throw fail("Bot not found: " + quote(botName));
}