@Override
    public void shutdown() throws IOException {
        this.client.close();
    }
BanyanDBStorageClient is a simple wrapper for the underlying {@link BanyanDBClient},
which implement {@link Client} and {@link HealthCheckable}.
oap-server/server-storage-plugin/storage-banyandb-plugin/src/main/java/org/apache/skywalking/oap/server/storage/plugin/banyandb/BanyanDBStorageClient.java