public Optional<BlockWithMetadata<Hash, Hash>> latestBlockWithTxHashes() {
    return this.blockByHashWithTxHashes(blockchain.getChainHeadHash());
  }
Returns the latest block with metadata and a list of transaction hashes rather than full
transactions.

@return The latest block.
ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/query/BlockchainQueries.java