cases := []struct {
		file            string
		recordDelimiter string
		fieldDelimiter  string
		header          bool
		wantColumns     []string
		wantTenFields   string
		totalFields     int
	}{
		{
			file:            "nyc-taxi-data-100k.csv",
			recordDelimiter: "\n",
			fieldDelimiter:  ",",
			header:          true,

func isCompressible(header http.Header, object string) bool {
	globalCompressConfigMu.Lock()
	cfg := globalCompressConfig
	globalCompressConfigMu.Unlock()

	return !excludeForCompression(header, object, cfg)
}

// Eliminate the non-compressible objects.
func excludeForCompression(header http.Header, object string, cfg compress.Config) bool {
	objStr := object

			if err != nil {
				err = msgp.WrapError(err)
				return
			}
		}
	}
	return
}

// EncodeMsg implements msgp.Encodable
func (z *nsScannerOptions) EncodeMsg(en *msgp.Writer) (err error) {
	// map header, size 3
	// write "id"
	err = en.Append(0x83, 0xa2, 0x69, 0x64)
	if err != nil {
		return
	}
	err = en.WriteString(z.DiskID)
	if err != nil {
		err = msgp.WrapError(err, "DiskID")
		return
	}

	}
	b = b[22:] // skip over most of the header
	filenameLen := int(b.uint16())
	extraLen := int(b.uint16())
	return int64(fileHeaderLen + filenameLen + extraLen), nil
}

// readDirectoryHeader attempts to read a directory header from r.
// It returns io.ErrUnexpectedEOF if it cannot read a complete header,
// and ErrFormat if it doesn't find a valid header signature.

		reqRecorder := &xhttp.RequestRecorder{Reader: r.Body}
		r.Body = reqRecorder

		// Create tracing data structure and associate it to the request context
		tc := mcontext.TraceCtxt{
			AmzReqID:         w.Header().Get(xhttp.AmzRequestID),
			RequestRecorder:  reqRecorder,
			ResponseRecorder: respRecorder,
		}

		r = r.WithContext(context.WithValue(r.Context(), mcontext.ContextTraceKey, &tc))

	if err != nil {
		err = msgp.WrapError(err)
		return
	}
	for zb0007, zb0008 := range z {
		err = en.WriteString(zb0007)
		if err != nil {
			err = msgp.WrapError(err)
			return
		}
		// map header, size 2
		// write "Bins"
		err = en.Append(0x82, 0xa4, 0x42, 0x69, 0x6e, 0x73)
		if err != nil {
			return
		}
		err = en.WriteArrayHeader(uint32(24))
		if err != nil {

			principalType = "AssumedRole"
		}
		if username == globalActiveCred.AccessKey {
			principalType = "Account"
		}
	}

	vid := r.Form.Get(xhttp.VersionID)
	if vid == "" {
		if u, err := url.Parse(r.Header.Get(xhttp.AmzCopySource)); err == nil {
			vid = u.Query().Get(xhttp.VersionID)
		}
	}

	authType := getRequestAuthType(r)
	var signatureVersion string
	switch authType {

					Name:   mg.MetricFQN(d.Name),
					Help:   d.Help,
					Type:   d.Type.String(),
					Labels: labels,
				}
				metrics = append(metrics, metric)
			}
		}
	}

	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		contentType := r.Header.Get("Content-Type")
		if contentType == "application/json" {
			w.Header().Set("Content-Type", "application/json")

			if err != nil {
				err = msgp.WrapError(err)
				return
			}
		}
	}
	return
}

// EncodeMsg implements msgp.Encodable
func (z *TierConfigMgr) EncodeMsg(en *msgp.Writer) (err error) {
	// map header, size 1
	// write "Tiers"
	err = en.Append(0x81, 0xa5, 0x54, 0x69, 0x65, 0x72, 0x73)
	if err != nil {
		return
	}
	err = en.WriteMapHeader(uint32(len(z.Tiers)))
	if err != nil {

	}

	req, err := http.NewRequestWithContext(ctx, http.MethodPost, p.DiscoveryDoc.UserInfoEndpoint, nil)
	if err != nil {
		return nil, err
	}

	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
	if accessToken != "" {
		req.Header.Set("Authorization", "Bearer "+accessToken)
	}

	client := &http.Client{
		Transport: transport,
	}

	resp, err := client.Do(req)
	if err != nil {