```Python hl_lines="3"
{!../../docs_src/first_steps/tutorial001.py!}
```

In diesem Beispiel ist die Variable `app` eine „Instanz“ der Klasse `FastAPI`.

Dies wird der Hauptinteraktionspunkt für die Erstellung all Ihrer APIs sein.

Die Variable `app` ist dieselbe, auf die sich der Befehl `uvicorn` bezieht:

<div class="termy">

```console
$ uvicorn main:app --reload

@echo off

if DEFINED JAVA_HOME goto cont

:err
ECHO JAVA_HOME environment variable must be set! 1>&2
EXIT /B 1 

:cont
set SCRIPT_DIR=%~dp0
for %%I in ("%SCRIPT_DIR%..") do set FESS_HOME=%%~dpfI


REM ***** JAVA options *****

if "%FESS_MIN_MEM%" == "" (
set FESS_MIN_MEM=256m
)

if "%FESS_MAX_MEM%" == "" (
set FESS_MAX_MEM=1g
)

if NOT "%FESS_HEAP_SIZE%" == "" (
set FESS_MIN_MEM=%FESS_HEAP_SIZE%

package config

import (
	"bytes"
	"crypto/tls"
	"crypto/x509"
	"encoding/pem"
	"errors"
	"os"

	"github.com/minio/pkg/v3/env"
)

// EnvCertPassword is the environment variable which contains the password used
// to decrypt the TLS private key. It must be set if the TLS private key is
// password protected.
const EnvCertPassword = "MINIO_CERT_PASSWD"

```

////

## Beschreibung mittels Docstring

Da Beschreibungen oft mehrere Zeilen lang sind, können Sie die Beschreibung der *Pfadoperation* im <abbr title="Ein mehrzeiliger String (keiner Variable zugewiesen) als erster Ausdruck in einer Funktion, wird für die Dokumentation derselben verwendet">Docstring</abbr> der Funktion deklarieren, und **FastAPI** wird sie daraus auslesen.

* `hack/local-up-cluster.sh` now enables the Node authorizer by default. Authorization modes can be overridden with the `AUTHORIZATION_MODE` environment variable, and the `ENABLE_RBAC` environment variable is no longer used. ([#49812](https://github.com/kubernetes/kubernetes/pull/49812), [@liggitt](https://github.com/liggitt))

* Add 'kubectl set env' command for setting environment variables inside containers for resources embedding pod templates ([#50998](https://github.com/kubernetes/kubernetes/pull/50998), [@zjj2wry](https://github.com/zjj2wry))

As descriptions tend to be long and cover multiple lines, you can declare the *path operation* description in the function <abbr title="a multi-line string as the first expression inside a function (not assigned to any variable) used for documentation">docstring</abbr> and **FastAPI** will read it from there.

- sidecar interception is enabled if:
    - "istio-init" container is not present in the pod.
    - istio-proxy container exists and
        - does not have DISABLE_ENVOY environment variable (which triggers proxyless mode)
        - has a istio-proxy container, with first 2 args "proxy" and "sidecar" - or less then 2 args, or first arg not proxy.
        - "sidecar.istio.io/inject" is not false

	}
	for _, c := range containers(pod) {
		pi.Containers.Insert(c.Name)
		if c.Name == ISTIOPROXY {
			// don't include ports from istio-proxy in the redirect ports
			// Get proxy container env variable, and extract out ProxyConfig from it.
			for _, e := range c.Env {
				pi.ProxyEnvironments[e.Name] = e.Value
			}
			if len(c.Args) >= 2 && c.Args[0] == "proxy" {
				pi.ProxyType = c.Args[1]
			}

    private final String name;
    private final ImmutableList<Type> bounds;

    TypeVariableImpl(D genericDeclaration, String name, Type[] bounds) {
      disallowPrimitiveType(bounds, "bound for type variable");
      this.genericDeclaration = checkNotNull(genericDeclaration);
      this.name = checkNotNull(name);
      this.bounds = ImmutableList.copyOf(bounds);
    }

    public Type[] getBounds() {