@Override
  public int getFutureMessagesMaxDistance() {
    return JsonUtil.getInt(
        bftConfigRoot, "futuremessagesmaxdistance", DEFAULT_FUTURE_MESSAGES_MAX_DISTANCE);
  }
Instantiates a new Json bft config options.

@param bftConfigRoot the bft config root
config/src/main/java/org/hyperledger/besu/config/JsonBftConfigOptions.java