presto-redis/src/main/java/io/prestosql/plugin/redis/RedisPlugin.java/RedisPlugin/setTableDescriptionSupplier
class RedisPlugin:    @VisibleForTesting
    public synchronized void setTableDescriptionSupplier(Supplier<Map<SchemaTableName, RedisTableDescription>> tableDescriptionSupplier)
    {
        this.tableDescriptionSupplier = Optional.of(requireNonNull(tableDescriptionSupplier, "tableDescriptionSupplier is null"));
    }