// Configuration constants
    private static final int MIN_COMPRESSION_SIZE = 512; // 512 bytes minimum
    private static final int MAX_COMPRESSION_SIZE = 1024 * 1024; // 1MB maximum
    private static final int COMPRESSION_LEVEL = Deflater.DEFAULT_COMPRESSION;

    // Supported algorithms
    private static final int[] SUPPORTED_ALGORITHMS = { COMPRESSION_NONE, COMPRESSION_LZ77, COMPRESSION_LZ77_HUFFMAN };

    @Override

pkg image/png, const BestCompression = -3
pkg image/png, const BestCompression CompressionLevel
pkg image/png, const BestSpeed = -2
pkg image/png, const BestSpeed CompressionLevel
pkg image/png, const DefaultCompression = 0
pkg image/png, const DefaultCompression CompressionLevel
pkg image/png, const NoCompression = -1
pkg image/png, const NoCompression CompressionLevel
pkg image/png, method (*Encoder) Encode(io.Writer, image.Image) error

	adminAPIClientDevExtraTime     = "/speedtest/client/devnull/extratime"
)

var gzipHandler = func() func(http.Handler) http.HandlerFunc {
	gz, err := gzhttp.NewWrapper(gzhttp.MinSize(1000), gzhttp.CompressionLevel(gzip.BestSpeed))
	if err != nil {
		// Static params, so this is very unlikely.
		logger.Fatal(err, "Unable to initialize server")
	}
	return gz
}()

// Set of handler options as bit flags