@Override
  public ForkchoiceResult updateForkChoice(
      final BlockHeader newHead, final Hash finalizedBlockHash, final Hash safeBlockHash) {
    return mergeCoordinator.updateForkChoice(newHead, finalizedBlockHash, safeBlockHash);
  }
Gets merge coordinator.

@return the merge coordinator
consensus/merge/src/main/java/org/hyperledger/besu/consensus/merge/blockcreation/TransitionCoordinator.java