{* ../../docs_src/events/tutorial003_py39.py hl[14:19] *}

The first part of the function, before the `yield`, will be executed **before** the application starts.

And the part after the `yield` will be executed **after** the application has finished.

### Async Context Manager { #async-context-manager }

             quit<b>)</b>
     <span style="background-color:#007166"><font color="#D3D7CF"> INFO </font></span>  Started parent process <b>[</b><font color="#34E2E2"><b>27365</b></font><b>]</b>
     <span style="background-color:#007166"><font color="#D3D7CF"> INFO </font></span>  Started server process <b>[</b><font color="#34E2E2"><b>27368</b></font><b>]</b>

 */
@Deprecated(since = "4.0.0")
public interface ModelWriter {

    /**
     * Writes the supplied model to the specified file. Any non-existing parent directories of the output file will be
     * created automatically.
     *
     * @param output The file to serialize the model to, must not be {@code null}.

         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <!-- Shared parent. Doesn't define a lot of things about Apache like general mailing lists, but does
       define the settings common to all projects at Apache -->
  <groupId>org.apache</groupId>
  <artifactId>apache</artifactId>

	arns := []string{}
	if evnot == nil {
		return arns
	}
	region := globalSite.Region()
	for targetID := range evnot.targetList.TargetMap() {
		// httpclient target is part of ListenNotification
		// which doesn't need to be listed as part of the ARN list
		// This list is only meant for external targets, filter
		// this out pro-actively.
		if !strings.HasPrefix(targetID.ID, "httpclient+") {

	// Read part checksums from serializedOut
	readParts := ReadPartCheckSums(serializedOut)
	expectedChecksums := []string{
		part1Checksum.Encoded,
		part2Checksum.Encoded,
		part3Checksum.Encoded,
	}
	for i, expected := range expectedChecksums {
		if got := readParts[i][ChecksumCRC32C.String()]; got != expected {
			t.Fatalf("want part%dChecksum.Encoded %s, got %s", i+1, expected, got)
		}

// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful

            // Then
            assertEquals(443, port);
            assertEquals(Handler.DEFAULT_HTTPS_PORT, port);
        }

        @Test
        @DisplayName("Should override parent HTTP port")
        void testPortOverride() {
            // When
            int httpsPort = handler.getDefaultPort();

            // Then
            assertEquals(443, httpsPort);

 */
@Deprecated(since = "4.0.0")
public interface SettingsWriter {

    /**
     * Writes the supplied settings to the specified file. Any non-existing parent directories of the output file will
     * be created automatically.
     *
     * @param output The file to serialize the settings to, must not be {@code null}.

     * Field name for method.
     */
    public static final String METHOD = "method";

    /**
     * Field name for URL.
     */
    public static final String URL = "url";

    /**
     * Field name for parent URL.
     */
    public static final String PARENT_URL = "parentUrl";

    /**
     * Field name for depth.
     */
    public static final String DEPTH = "depth";

    /**