public override string ToString() {
StringBuilder sb = new StringBuilder("commitSendMessages_args(");
sb.Append("Seq: ");
sb.Append(Seq);
sb.Append(",MessageIds: ");
sb.Append(MessageIds);
sb.Append(",ReceiverMids: ");
sb.Append(ReceiverMids);
sb.Append(")");
return sb.ToString();
}