in.Error("redefinition of macro:", name)
	}
	in.macros[name] = &Macro{
		name:   name,
		args:   args,
		tokens: tokens,
	}
}

// macroDefinition returns the list of formals and the tokens of the definition.
// The argument list is nil for no parens on the definition; otherwise a list of
// formal argument names.
func (in *Input) macroDefinition(name string) ([]string, []Token) {

				<configuration>
					<encoding>UTF-8</encoding>
					<properties>
						<year>2025</year>
					</properties>
					<headerDefinitions>
						<headerDefinition>https://www.codelibs.org/assets/license/header-definition-2.xml</headerDefinition>
					</headerDefinitions>
					<licenseSets>
						<licenseSet>
							<header>https://www.codelibs.org/assets/license/header.txt</header>
							<includes>

### Validation

* Validation pour la plupart (ou tous?) les **types de données** Python incluant:
    * objets JSON (`dict`).
    * listes JSON (`list`) définissant des types d'éléments.
    * Champs String (`str`), définition de longueur minimum ou maximale.
    * Nombres (`int`, `float`) avec valeur minimale and maximale, etc.

* Validation pour des types plus exotiques, tel que:
    * URL.
    * Email.
    * UUID.

![ReDoc](https://fastapi.tiangolo.com/img/index/index-02-redoc-simple.png)

### OpenAPI

**FastAPI** génère un "schéma" contenant toute votre API dans le standard de définition d'API **OpenAPI**.

#### "Schéma"

Un "schéma" est une définition ou une description de quelque chose. Pas le code qui l'implémente, uniquement une description abstraite.

#### "Schéma" d'API

    // ===================================================================================
    //                                                                          Definition
    //                                                                          ==========
    private static final long serialVersionUID = 1L;

				<configuration>
					<encoding>UTF-8</encoding>
					<properties>
						<year>2025</year>
					</properties>
					<headerDefinitions>
						<headerDefinition>https://www.codelibs.org/assets/license/header-definition-2.xml</headerDefinition>
					</headerDefinitions>
					<licenseSets>
						<licenseSet>
							<header>https://www.codelibs.org/assets/license/header.txt</header>
							<includes>

* There are 4 minio distributed instances created by default. You can add more MinIO services (up to total 16) to your MinIO Compose deployment. To add a service
  * Replicate a service definition and change the name of the new service appropriately.
  * Update the command section in each service.
  * Add a new MinIO server instance to the upstream directive in the Nginx configuration file.

#### "Schema" { #schema }

A "schema" is a definition or description of something. Not the code that implements it, but just an abstract description.

#### API "schema" { #api-schema }

In this case, <a href="https://github.com/OAI/OpenAPI-Specification" class="external-link" target="_blank">OpenAPI</a> is a specification that dictates how to define a schema of your API.

### OpenAPI { #openapi }

**FastAPI** generiert ein „Schema“ mit all Ihren APIs unter Verwendung des **OpenAPI**-Standards zur Definition von APIs.

#### „Schema“ { #schema }

Ein „Schema“ ist eine Definition oder Beschreibung von etwas. Nicht der eigentliche Code, der es implementiert, sondern lediglich eine abstrakte Beschreibung.

#### API-„Schema“ { #api-schema }

                String packageLine = lines.filter(line -> line.startsWith("package"))
                    .findFirst()
                    .orElseThrow(() -> new IOException("Can't find package definition in file " + file));
                Matcher matcher = pattern.matcher(packageLine);
                if (matcher.find()) {
                    return matcher.group(1);
                } else {