cfg.Enable = env.Get(EnvEnable, kvs.GetWithDefault(Enable, DefaultKVS)) == config.EnableOn

	if d := env.Get(EnvBlockSize, kvs.GetWithDefault(BlockSize, DefaultKVS)); d != "" {
		objectSize, err := humanize.ParseBytes(d)
		if err != nil {
			return cfg, err
		}
		cfg.BlockSize = int64(objectSize)
	}

	cfg.Endpoint = env.Get(EnvEndpoint, kvs.GetWithDefault(Endpoint, DefaultKVS))
	cfg.clnt = &http.Client{Transport: transport}