```

Dans ce cas, `fluffy` est une instance de la classe `Cat`.

Et pour créer `fluffy`, vous « appelez » `Cat`.

Donc, une classe Python est aussi un « callable ».

Ainsi, avec **FastAPI**, vous pouvez utiliser une classe Python comme dépendance.

Ce que **FastAPI** vérifie réellement, c'est qu'il s'agit d'un « callable » (fonction, classe ou autre) et des paramètres qui y sont définis.

# Dependency Olarak Class'lar { #classes-as-dependencies }

**Dependency Injection** sistemine daha derinlemesine geçmeden önce, bir önceki örneği geliştirelim.

## Önceki Örnekten Bir `dict` { #a-dict-from-the-previous-example }

Önceki örnekte, dependency'mizden ("dependable") bir `dict` döndürüyorduk:

{* ../../docs_src/dependencies/tutorial001_an_py310.py hl[9] *}

Ama sonra *path operation function* içindeki `commons` parametresinde bir `dict` alıyoruz.

Date: Summary no class cycles class cycle class cycles class layers classes (using external classes) grouped in packages no package cycles package cycle package cycles no package packages Type Number of classes Averaged (maximum) size in bytes Averaged (maximum) number of usage by other classes Averaged (maximum) number of used internal classes Averaged (maximum) number of used external clasess Interfaces Abstract classes Concrete classes Cycles Name Number of classes Best Fragment Size Girth Radius Diameter...

            classes[it.simpleName] = instanceScopedPool.get(it.name)
        }

        classes['OldBase'].superclass = classes['OldSuperInternal']
        classes['NewBase'].superclass = classes['NewSuperInternal']
        classes['OldSub'].superclass = classes['OldBase']
        classes['NewSub'].superclass = classes['NewBase']

| <<<javadoc>>>         | <<<javadoc>>> | <<<jar>>>  | java      | classes               |                       |
*-----------------------+---------------+------------+-----------+-----------------------+-----------------------+
| <<<test-jar>>>        | <<<tests>>>   | <<<jar>>>  | java      | classes, patch module |                       |

        assertOutputContains(
            result.getOutput(),
            "Tests classes with suffix `IT` should extend org.elasticsearch.gradle.testkit.Integration but the following classes do not:",
            "  * org.elasticsearch.gradle.testkit.NamingConventionIT",
            "  * org.elasticsearch.gradle.testkit.NamingConventionMissmatchIT",

                            .map(classes::get)
                            .filter(this::implementsNamingConvention)
                            .collect(Collectors.toSet())
                    )
                );

            final Map<String, Set<Class<?>>> suffixToBaseClass;
            if (classes.isEmpty()) {
                // Don't load base classes if we don't have any tests.

        }
    }

    /**
     * Traverses classes contained in a Jar file.
     * <p>
     * If the specified Jar file has the extension <code>.war</code>, only entries whose path starts with the prefix <code>WEB-INF/classes</code> are traversed.
     * The handler receives the entry name excluding the prefix. For example, if the Jar file contains <code>/WEB-INF/classes/ccc/ddd/Eee.class</code>,

 * }
 * </pre>
 *
 * <p>please use {@link ClassSanityTester#forAllPublicStaticMethods}.
 *
 * <p>If not all classes on the classpath should be covered, {@link #ignoreClasses} can be used to
 * exclude certain classes. As a special case, classes with an underscore in the name (like {@code
 * AutoValue_Foo}) can be excluded using <code>ignoreClasses({@link #UNDERSCORE_IN_NAME})</code>.
 *

 * security protections against deserialization attacks. By default, it uses an
 * ObjectInputFilter to restrict which classes can be deserialized.
 * </p>
 * <p>
 * The default filter allows common safe classes like primitives, arrays, String,
 * Number types, collections, and classes in the org.codelibs package. For custom
 * requirements, use the overloaded methods that accept a custom filter.
 * </p>
 *
 * @author higa