To add a function that should be run when the application is shutting down, declare it with the event `"shutdown"`:

{* ../../docs_src/events/tutorial002_py39.py hl[6] *}

Here, the `shutdown` event handler function will write a text line `"Application shutdown"` to a file `log.txt`.

/// info

class package org.codehaus.plexus.util; public synchronized class StringOutputStream extends java.io.OutputStream { private StringBuffer buf; public void StringOutputStream(); public void write(byte[]) throws java.io.IOException; public void write(byte[], int, int) throws java.io.IOException; public void write(int) throws java.io.IOException; public String toString(); } org/codehaus/plexus/util/StringUtils.class package org.codehaus.plexus.util; public synchronized class StringUtils { public void...

          "fullMetaSearch": false,
          "hide": false,
          "includeNullMetadata": true,
          "instant": false,
          "legendFormat": "Pool {{pool}} / Set {{set}} - Write Quorum",
          "range": true,
          "refId": "C",
          "useBackend": false
        },
        {
          "datasource": {
            "type": "prometheus",

            Settings settings, SettingsBuildingRequest request, SettingsProblemCollector problems) {
        StringWriter writer = new StringWriter(1024 * 4);

        try {
            settingsWriter.write(writer, null, settings);
        } catch (IOException e) {
            throw new IllegalStateException("Failed to serialize settings to memory", e);
        }

        String serializedSettings = writer.toString();

	Data []byte `msg:"d,allownil"` // optionally carries object data

	NumVersions      int       `msg:"nv"`
	SuccessorModTime time.Time `msg:"smt"`

	Fresh bool `msg:"fr"` // indicates this is a first time call to write FileInfo.

	// Position of this version or object in a multi-object delete call,
	// no other caller must set this value other than multi-object delete call.
	// usage in other calls in undefined please avoid.

var (
	ErrHeader          = errors.New("archive/tar: invalid tar header")
	ErrWriteTooLong    = errors.New("archive/tar: write too long")
	ErrFieldTooLong    = errors.New("archive/tar: header field too long")
	ErrWriteAfterClose = errors.New("archive/tar: write after close")
	ErrInsecurePath    = errors.New("archive/tar: insecure file path")

	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

	if withUpdatedAt {
		w.Header().Set(xhttp.MinIOLifecycleCfgUpdatedAt, updatedAt.Format(iso8601Format))
	}
	// Write lifecycle configuration to client.
	writeSuccessResponseXML(w, configData)
}

// DeleteBucketLifecycleHandler - This HTTP handler removes bucket lifecycle configuration.

			b.WriteByte(',')
		}
	}
	b.WriteByte('}')
	return b.Bytes(), nil
}

// Adapted from Go stdlib.

var hexTable = "0123456789abcdef"

// escapeStringJSON will escape a string for JSON and write it to dst.
func escapeStringJSON(dst *bytes.Buffer, s string) {
	start := 0
	for i := 0; i < len(s); {
		if b := s[i]; b < utf8.RuneSelf {
			if htmlSafeSet[b] {
				i++
				continue
			}
			if start < i {

	if !fileInfoPreHeal.Equals(fileInfoPostHeal) {
		t.Fatal("HealObject failed")
	}

	err = os.RemoveAll(path.Join(fsDirs[0], bucket, object, "xl.meta"))
	if err != nil {
		t.Fatal(err)
	}

	// Write xl.meta with different modtime to simulate the case where a disk had
	// gone down when an object was replaced by a new object.
	fileInfoOutDated := fileInfoPreHeal
	fileInfoOutDated.ModTime = time.Now()

Create functions with a name that starts with `test_` (this is standard `pytest` conventions).

Use the `TestClient` object the same way as you do with `httpx`.

Write simple `assert` statements with the standard Python expressions that you need to check (again, standard `pytest`).

{* ../../docs_src/app_testing/tutorial001_py39.py hl[2,12,15:18] *}

/// tip