@Override
  protected void prepForBuild() {
    preMergeBesuControllerBuilder.prepForBuild();
    mergeBesuControllerBuilder.prepForBuild();
  }
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