@Override
  public int getBlockPeriodSeconds() {
    return JsonUtil.getPositiveInt(
        bftConfigRoot, "blockperiodseconds", DEFAULT_BLOCK_PERIOD_SECONDS);
  }
Instantiates a new Json bft config options.

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