You can create production applications with **FastAPI** right now (and you have probably been doing it for some time), you just have to make sure that you use a version that works correctly with the rest of your code.

## Pin your `fastapi` version

          <type>String</type>
        </field>
        <field>
          <version>1.0.0</version>
          <name>cliOptions</name>
          <description>The command-line switches used to change the value of this expression.</description>
          <type>Properties</type>
          <association xml.mapStyle="explode">
            <type>String</type>
            <multiplicity>*</multiplicity>

    return
  fi
  # Enter the output directory.
  mkdir -p "$(dirname "$2")"
  pushd "$(dirname "$2")"

  # Download and make the binary executable
  echo "Downloading ztunnel: $1 to $2"
  time ${DOWNLOAD_COMMAND} --header "${AUTH_HEADER:-}" "$1" > "$2"
  chmod +x "$2"

  # Make a copy named just "ztunnel" in the same directory (overwrite if necessary).
  echo "Copying $2 to $(dirname "$2")/${3}"

import assertk.assertions.isEqualTo
import kotlin.test.Test
import okhttp3.HttpUrl.Companion.toHttpUrlOrNull

/** Runs the web platform ToAscii tests. */
class WebPlatformToAsciiTest {
  @Suppress("ktlint:standard:max-line-length")
  val knownFailures =
    setOf(
      // OkHttp rejects empty labels.
      "x..xn--zca",
      "x..ß",
      // OkHttp rejects labels longer than 63 code points, the web platform tests don't.

 *
 * <p>These options represent the various flags and settings available through the Maven CLI,
 * as well as those that can be specified in the {@code maven.config} file. They provide fine-grained
 * control over Maven's behavior during the build process.</p>
 *
 * @since 4.0.0
 */
@Experimental
public interface MavenOptions extends Options {

    /**

///

## Multiple Workers

You can start multiple workers with the `--workers` command line option:

//// tab | `fastapi`

If you use the `fastapi` command:

<div class="termy">

```console
$ <pre> <font color="#4E9A06">fastapi</font> run --workers 4 <u style="text-decoration-style:single">main.py</u>

		`
	var err error
	dir := t.TempDir()

	mountsPath := filepath.Join(dir, "mounts")
	if err = os.WriteFile(mountsPath, []byte(successCase), 0o666); err != nil {
		t.Fatal(err)
	}
	// Verifies if reading each line worked properly.
	{
		var mounts mountInfos
		mounts, err = readProcMounts(mountsPath)
		if err != nil {
			t.Fatal(err)
		}
		if len(mounts) != 3 {
			t.Fatalf("expected 3 mounts, got %d", len(mounts))

echo {{ tpl .accessKey $global }} > $MINIO_ACCESSKEY_SECRETKEY_TMP
{{- if .existingSecret }}
cat /config/secrets-svc/{{ tpl .existingSecret $global }}/{{ tpl .existingSecretKey $global }} >> $MINIO_ACCESSKEY_SECRETKEY_TMP
# Add a new line if it doesn't exist
echo >> $MINIO_ACCESSKEY_SECRETKEY_TMP
{{ else }}
echo {{ .secretKey }} >> $MINIO_ACCESSKEY_SECRETKEY_TMP
{{- end }}
{{- if $svc.policy}}
createSvcacct {{ .user }} svc_policy_{{ $idx }}

// the kernel.
//
// DirectIO semantics for a filesystem like ZFS would be quite different than
// the semantics on filesystems like XFS, and these semantics are not
// implemented at this time.
// For more information on why typical DirectIO semantics do not apply to ZFS
// see this ZFS-on-Linux commit message:
// https://github.com/openzfs/zfs/commit/a584ef26053065f486d46a7335bea222cb03eeea

# o rdbDiXmlResourceName: (NotRequired - Default 'rdb.xml')
#
# {CSharp} Quill(CSharp Seasar) Only:
# o quillDataSourceName: (NotRequired - Default null)
#
# *The line that starts with '#' means comment-out.
#
map:{
    # ====================================================================================
    #                                                                               Spring