@Override
  public boolean isQbft() {
    return configRoot.has(QBFT_CONFIG_KEY);
  }
Instantiates a new Json genesis config options.

@param maybeConfig the optional config
@param configOverrides the config overrides map
@param transitionsConfig the transitions configuration
config/src/main/java/org/hyperledger/besu/config/JsonGenesisConfigOptions.java