### Input Model in Docs { #input-model-in-docs }

You can confirm that in the docs, the `description` field doesn't have a **red asterisk**, it's not marked as required:

<div class="screenshot">
<img src="/img/tutorial/separate-openapi-schemas/image01.png">
</div>

### Model for Output { #model-for-output }

But if you use the same model as an output, like here:

    <img src="https://coverage-badge.samuelcolvin.workers.dev/fastapi/fastapi.svg" alt="Coverage">
</a>
<a href="https://pypi.org/project/fastapi" target="_blank">
    <img src="https://img.shields.io/pypi/v/fastapi?color=%2334D058&label=pypi%20package" alt="Package version">
</a>
<a href="https://pypi.org/project/fastapi" target="_blank">

Você verá uma página simples como:

<img src="/img/tutorial/websockets/image01.png">

Você pode digitar mensagens na caixa de entrada e enviá-las:

<img src="/img/tutorial/websockets/image02.png">

E sua aplicação **FastAPI** com WebSockets responderá de volta:

<img src="/img/tutorial/websockets/image03.png">

Você pode enviar (e receber) muitas mensagens:

<img src="/img/tutorial/websockets/image04.png">

# The Go Programming Language

Go is an open source programming language that makes it easy to build simple,
reliable, and efficient software.

![Gopher image](https://golang.org/doc/gopher/fiveyears.jpg)
*Gopher image by [Renee French][rf], licensed under [Creative Commons 4.0 Attribution license][cc4-by].*

Our canonical Git repository is located at https://go.googlesource.com/go.
There is a mirror of the repository at https://github.com/golang/go.

0","configurationId":"Config","bucket":{"name":"images","ownerIdentity":{"principalId":"minio"},"arn":"arn:aws:s3:::images"},"object":{"key":"myphoto.jpg","size":248682,"eTag":"f1671feacb8bbf7b0397c6e9364e8c92","contentType":"image/jpeg","userDefined":{"content-type":"image/jpeg"},"versionId":"1","sequencer":"14CF20BD1EFD5B93"}},"source":{"host":"192.168.1.80","port":"55328","userAgent":"MinIO (linux; amd64) minio-go/2.0.4 mc/DEVELOPMENT.GOGET"}}],"level":"info","msg":"","time":"2017-07-07T11:46:37-07:00"}...

  private val client = OkHttpClient()

  fun run() {
    // Use the imgur image upload API as documented at https://api.imgur.com/endpoints/image
    val requestBody =
      MultipartBody
        .Builder()
        .setType(MultipartBody.FORM)
        .addFormDataPart("title", "Square Logo")
        .addFormDataPart(
          "image",
          "logo-square.png",

Verás una página simple como:

<img src="/img/tutorial/websockets/image01.png">

Puedes escribir mensajes en el cuadro de entrada y enviarlos:

<img src="/img/tutorial/websockets/image02.png">

Y tu aplicación **FastAPI** con WebSockets responderá de vuelta:

<img src="/img/tutorial/websockets/image03.png">

Puedes enviar (y recibir) muchos mensajes:

<img src="/img/tutorial/websockets/image04.png">

Sie sehen eine einfache Seite wie:

<img src="/img/tutorial/websockets/image01.png">

Sie können Nachrichten in das Eingabefeld tippen und absenden:

<img src="/img/tutorial/websockets/image02.png">

Und Ihre **FastAPI**-Anwendung mit WebSockets antwortet:

<img src="/img/tutorial/websockets/image03.png">

Sie können viele Nachrichten senden (und empfangen):

<img src="/img/tutorial/websockets/image04.png">

<img src="/img/deployment/https/https01.drawio.svg">

### TLS Handshake Start { #tls-handshake-start }

The browser would then communicate with that IP address on **port 443** (the HTTPS port).

The first part of the communication is just to establish the connection between the client and the server and to decide the cryptographic keys they will use, etc.

<img src="/img/deployment/https/https02.drawio.svg">

В тот же момент вы пытаетесь запустить автодополнение с помощью `Ctrl+Space` и вы видите:

<img src="/img/python-types/image02.png">

При этом вы можете просматривать варианты, пока не найдёте подходящий:

<img src="/img/python-types/image03.png">

## Больше мотивации

Проверьте эту функцию, она уже имеет аннотации типов: