public static Block toBesuBlock(final QbftBlock block) {
    if (block instanceof QbftBlockAdaptor) {
      return ((QbftBlockAdaptor) block).getBesuBlock();
    } else {
      throw new IllegalArgumentException("Unsupported block type");
    }
  }
Convert a QBFT block to a Besu block.

@param block the QBFT block
@return the Besu block
consensus/qbft/src/main/java/org/hyperledger/besu/consensus/qbft/adaptor/BlockUtil.java