@Override
  public BesuControllerBuilder genesisConfig(final GenesisConfig genesisConfig) {
    super.genesisConfig(genesisConfig);
    return propagateConfig(z -> z.genesisConfig(genesisConfig));
  }
Instantiates a new Transition besu controller builder.

@param preMergeBesuControllerBuilder the pre merge besu controller builder
@param mergeBesuControllerBuilder the merge besu controller builder
app/src/main/java/org/hyperledger/besu/controller/TransitionBesuControllerBuilder.java