default boolean isCompatibleWithEngineApi() {
    return false;
  }
Creates a block if possible, otherwise return an empty result

@param parentHeader The parent block's header
@param timestamp unix timestamp of the new block.
@return If supported, returns the block that was created, otherwise an empty response.
ethereum/blockcreation/src/main/java/org/hyperledger/besu/ethereum/blockcreation/MiningCoordinator.java