// very first conversation step) and attempts to move the authentication
// conversation forward.  It returns a string to be sent to the server or an
// error if the server message is invalid.  Calling Step after a conversation
// completes is also an error.
func (x *XDGSCRAMClient) Step(challenge string) (response string, err error) {
	response, err = x.ClientConversation.Step(challenge)
	return
}

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

// Msgsize returns an upper bound estimate of the number of bytes occupied by the serialized message
func (z RStat) Msgsize() (s int) {
	s = 1 + 6 + msgp.Int64Size + 6 + msgp.Int64Size
	return
}

// DecodeMsg implements msgp.Decodable
func (z *RTimedMetrics) DecodeMsg(dc *msgp.Reader) (err error) {

			}
		case minio.ErrorResponse:
			apiErr = APIError{
				Code:           e.Code,
				Description:    e.Message,
				HTTPStatusCode: e.StatusCode,
			}
			if strings.Contains(e.Message, "KMS is not configured") {
				apiErr = APIError{
					Code:           "NotImplemented",
					Description:    e.Message,
					HTTPStatusCode: http.StatusNotImplemented,
				}
			}
		case *googleapi.Error:

	errWildcardObjectLookup       = errors.New("Object wildcard used on non-object value")
	errWildcardArrayLookup        = errors.New("Array wildcard used on non-array value")
	errWildcardObjectUsageInvalid = errors.New("Invalid usage of object wildcard")
)

// jsonpathEval evaluates a JSON path and returns the value at the path.
// If the value should be considered flat (from wildcards) any array returned should be considered individual values.

	Err string
}

func (e BackendDown) Error() string {
	return e.Err
}

// NotImplemented If a feature is not implemented
type NotImplemented struct {
	Message string
}

func (e NotImplemented) Error() string {
	return e.Message
}

// UnsupportedMetadata - unsupported metadata
type UnsupportedMetadata struct{}

func (e UnsupportedMetadata) Error() string {

	}
	if isErrObjectNotFound(err) {
		if err.Error() != "Object not found: bucket/dir1" {
			t.Errorf("%s: Expected the Error message to be `%s`, but instead found `%s`", instanceType, "Object not found: bucket/dir1", err.Error())
		}
	} else {
		if err.Error() != "fails" {
			t.Errorf("%s: Expected the Error message to be `%s`, but instead found it to be `%s`", instanceType, "fails", err.Error())
		}
	}
}

// errSkipFile returned by the fn() for readDirFn() when it needs
// to proceed to next entry.
var errSkipFile = errors.New("skip this file")

var errIgnoreFileContrib = errors.New("ignore this file's contribution toward data-usage")

// errXLBackend XL drive mode requires fresh deployment.
var errXLBackend = errors.New("XL backend requires fresh drive")

// StorageErr represents error generated by xlStorage call.
type StorageErr string

          },
          "editorMode": "code",
          "exemplar": true,
          "expr": "max(minio_cluster_usage_total_bytes{job=~\"$scrape_jobs\"})",
          "interval": "",
          "legendFormat": "Usage",
          "range": true,
          "refId": "A"
        }
      ],
      "title": "Data Usage Growth",
      "type": "timeseries"
    },
    {
      "datasource": {
        "type": "prometheus",

	data, err := io.ReadAll(response.Body)
	c.Assert(err, nil)
	errorResponse := APIErrorResponse{}
	err = xml.Unmarshal(data, &errorResponse)
	c.Assert(err, nil)
	c.Assert(errorResponse.Code, code)
	c.Assert(errorResponse.Message, description)
	c.Assert(response.StatusCode, statusCode)
}

func runAllTests(suite *TestSuiteCommon, c *check) {
	suite.SetUpSuite(c)
	suite.TestCors(c)
	suite.TestObjectDir(c)
	suite.TestBucketPolicy(c)

cd prometheus-*
```

Prometheus server is a single binary called `prometheus` (or `prometheus.exe` on Microsoft Windows). Run the binary and pass `--help` flag to see available options

```sh
./prometheus --help
usage: prometheus [<flags>]

The Prometheus monitoring server

. . .
```

Refer [Prometheus documentation](https://prometheus.io/docs/introduction/first_steps/) for more details.