But the details between *concurrency* and *parallelism* are quite different.

To see the difference, imagine the following story about burgers:

### Concurrent Burgers

You go with your crush to get fast food, you stand in line while the cashier takes the orders from the people in front of you. 😍

<img src="/img/async/concurrent-burgers/concurrent-burgers-01.png" class="illustration">

Um einen sicheren zufälligen geheimen Schlüssel zu generieren, verwenden Sie den folgenden Befehl:

<div class="termy">

```console
$ openssl rand -hex 32

09d25e094faa6ca2556c818166b7a9563b93f7099f6f0f4caa6cf63b88e8d3e7
```

</div>

Und kopieren Sie die Ausgabe in die Variable `SECRET_KEY` (verwenden Sie nicht die im Beispiel).

!!! note
    It's common that each authentication provider names their flows in a different way, to make it part of their brand.

    But in the end, they are implementing the same OAuth2 standard.

**FastAPI** includes utilities for all these OAuth2 authentication flows in `fastapi.security.oauth2`.

## `Security` in decorator `dependencies`

Nevertheless, it's possible to do it, and here you'll see exactly what code you have to add to be able to use Peewee with FastAPI.

!!! note "Technical Details"

    "@local_config_cuda//cuda:cudart + "\
    "@local_config_cuda//cuda:cudart + "\
    "@local_config_cuda//cuda:cuda_driver + "\
    "@local_config_cuda//cuda:cudnn + "\
    "@local_config_cuda//cuda:curand + "\
    "@local_config_cuda//cuda:cusolver + "\
    "@local_config_tensorrt//:tensorrt)" --keep_going > $BATS_TEST_TMPDIR/out

  cat <<EOF
There was a path found connecting //tensorflow/tools/pip_package:wheel

    "@local_config_cuda//cuda:cudart + "\
    "@local_config_cuda//cuda:cudart + "\
    "@local_config_cuda//cuda:cuda_driver + "\
    "@local_config_cuda//cuda:cudnn + "\
    "@local_config_cuda//cuda:curand + "\
    "@local_config_cuda//cuda:cusolver + "\
    "@local_config_tensorrt//:tensorrt)" --keep_going > $BATS_TEST_TMPDIR/out

  cat <<EOF

### Swagger-Benutzeroberfläche und OpenAPI-spezifische `examples`.

Da die Swagger-Benutzeroberfläche derzeit nicht mehrere JSON Schema Beispiele unterstützt (Stand: 26.08.2023), hatten Benutzer keine Möglichkeit, mehrere Beispiele in der Dokumentation anzuzeigen.

pkg debug/elf, const DF_1_STUB DynFlag1 #56887
pkg debug/elf, const DF_1_SYMINTPOSE = 8388608 #56887
pkg debug/elf, const DF_1_SYMINTPOSE DynFlag1 #56887
pkg debug/elf, const DF_1_TRANS = 512 #56887
pkg debug/elf, const DF_1_TRANS DynFlag1 #56887
pkg debug/elf, const DF_1_WEAKFILTER = 536870912 #56887
pkg debug/elf, const DF_1_WEAKFILTER DynFlag1 #56887
pkg debug/elf, const R_PPC64_REL24_P9NOTOC = 124 #60348

Import the modules installed.

Create a random secret key that will be used to sign the JWT tokens.

To generate a secure random secret key use the command:

<div class="termy">

```console
$ openssl rand -hex 32

09d25e094faa6ca2556c818166b7a9563b93f7099f6f0f4caa6cf63b88e8d3e7
```

</div>

And copy the output to the variable `SECRET_KEY` (don't use the one in the example).

Cela le rend extrêmement intuitif.

Il est comparable à Marshmallow. Bien qu'il soit plus rapide que Marshmallow dans les benchmarks. Et comme il est
basé sur les mêmes type hints Python, le support de l'éditeur est grand.

!!! check "**FastAPI** l'utilise pour"
Gérer toute la validation des données, leur sérialisation et la documentation automatique du modèle (basée sur le schéma JSON).