private void importEra1Blocks(final BesuController controller, final Path path)
        throws IOException,
            java.util.concurrent.ExecutionException,
            InterruptedException,
            TimeoutException {
      parentCommand.era1BlockImporter.get().importBlocks(controller, path);
    }
blocks import sub-command

<p>Imports blocks from a file into the database
app/src/main/java/org/hyperledger/besu/cli/subcommands/blocks/BlocksSubCommand.java