private boolean isValid(final BlockRangeUpdateMessage message) {
    return message.getLatestBlockNumber() >= message.getEarliestBlockNumber();
  }
Handles the block range update message received from a peer.

@param message the message received from the peer
ethereum/eth/src/main/java/org/hyperledger/besu/ethereum/eth/sync/BlockRangeBroadcaster.java