The TensorFlow team does not yet have guidelines in place for contributing to
this directory. We are working on it. Please join a TF SIG Build meeting (see:
bit.ly/tf-sig-build-notes) if you'd like to discuss the future of contributions.

### Brief System Overview

The top-level scripts and utility scripts should be fairly well-documented. Here
is a brief explanation of how they tie together:

```console
$ pip install email-validator
```

ou avec :

```console
$ pip install "pydantic[email]"
```

///

Et nous utilisons ce modèle pour déclarer notre entrée et le même modèle pour déclarer notre sortie :

{* ../../docs_src/response_model/tutorial002_py310.py hl[16] *}

constraints.DecimalMax.message = {item} muss kleiner als {value} sein.
constraints.DecimalMin.message = {item} muss größer als {value} sein.
constraints.Digits.message = {item} muss eine Zahl sein. (erwartet: <Zahl>.<Zahl>)
constraints.Future.message = {item} muss ein zukünftiger Wert sein.
constraints.Max.message = {item} muss kleiner oder gleich {value} sein.
constraints.Min.message = {item} muss größer oder gleich {value} sein.

          <association>
            <type>Repository</type>
            <multiplicity>*</multiplicity>
          </association>
          <comment>
            This may be removed or relocated in the near
            future. It is undecided whether plugins really need a remote
            repository set of their own.
          </comment>
        </field>
        <field xdoc.separator="blank">
          <name>profiles</name>

It is much more difficult for the C world to have pointers into the Go
world, because the Go garbage collector is unaware of the memory
allocated by C.  The most important consideration is not to
constrain future implementations, so the rule is that Go code can
hand a Go pointer to C code but must separately arrange for
Go to hang on to a reference to the pointer until C is done with it.
*/
package gmp

/*

constraints.DecimalMax.message = {item} {value} से कम होना चाहिए।
constraints.DecimalMin.message = {item} {value} से अधिक होना चाहिए।
constraints.Digits.message = {item} एक संख्या होनी चाहिए। (अपेक्षित: <number>.<number>)
constraints.Future.message = {item} भविष्य का मान होना चाहिए।
constraints.Max.message = {item} {value} से कम या बराबर होना चाहिए।
constraints.Min.message = {item} {value} से अधिक या बराबर होना चाहिए।
constraints.NotNull.message = {item} आवश्यक है।

{* ../../docs_src/dependencies/tutorial011_an_py310.py hl[22] *}

/// tip | Dica

Tudo isso parece não ser natural. E pode não estar muito claro ou aparentar ser útil ainda.

Estes exemplos são intencionalmente simples, porém mostram como tudo funciona.

	nStr, rest, ok := strings.Cut(s, " ")
	if !ok {
		return "", "", s, ErrHeader
	}

	// Parse the first token as a decimal integer.
	n, perr := strconv.ParseInt(nStr, 10, 0) // Intentionally parse as native int
	if perr != nil || n < 5 || n > int64(len(s)) {
		return "", "", s, ErrHeader
	}
	n -= int64(len(nStr) + 1) // convert from index in s to index in rest
	if n <= 0 {
		return "", "", s, ErrHeader
	}

    public static final String CONSTRAINTS_Digits_MESSAGE = "{constraints.Digits.message}";

    /** The key of the message: {item} must be a future value. */
    public static final String CONSTRAINTS_Future_MESSAGE = "{constraints.Future.message}";

    /** The key of the message: {item} must be less than or equal to {value}. */
    public static final String CONSTRAINTS_Max_MESSAGE = "{constraints.Max.message}";

Dans notre exemple de code ci-dessus, nous ne l'utilisons pas directement, mais nous le transmettons à FastAPI pour qu'il l'utilise.

Le paramètre `lifespan` de l'application `FastAPI` accepte un **gestionnaire de contexte asynchrone**, nous pouvons donc lui passer notre nouveau gestionnaire de contexte asynchrone `lifespan`.