You can combine `dataclasses` with other type annotations in many different combinations to form complex data structures.

Check the in-code annotation tips above to see more specific details.

## Learn More { #learn-more }

You can also combine `dataclasses` with other Pydantic models, inherit from them, include them in your own models, etc.

]

[project.scripts]
fastapi = "fastapi.cli:main"

[dependency-groups]
dev = [
    { include-group = "tests" },
    { include-group = "docs" },
    { include-group = "translations" },
    "playwright >=1.57.0",
    "prek >=0.2.22",
]
docs = [
    { include-group = "docs-tests" },
    "black >=25.1.0",
    "cairosvg >=2.8.2",
    # for MkDocs live reload
    "click==8.2.1",

C'est un usage avancé dont vous n'aurez peut-être pas vraiment besoin, mais il est là au cas où.

## Inclure un `APIRouter` dans un autre { #include-an-apirouter-in-another }

De la même manière que vous pouvez inclure un `APIRouter` dans une application `FastAPI`, vous pouvez inclure un `APIRouter` dans un autre `APIRouter` en utilisant :

```Python
router.include_router(other_router)
```

import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;

import static org.apache.commons.io.FileUtils.readFileToString;

/**
 * A task to create a notice file which includes dependencies' notices.
 */
public class NoticeTask extends DefaultTask {

    @InputFile
    private File inputFile = getProject().getRootProject().file("NOTICE.txt");
    @OutputFile

        currentUpgradedPropertiesFile.get().asFile,
        baselineUpgradedPropertiesFile.get().asFile,
        {
            it.includedClasses = toPatterns(PublicApi.includes + PublicKotlinDslApi.includes)
            it.excludedClasses = toPatterns(PublicApi.excludes + PublicKotlinDslApi.excludes)

        assertNull(ex.getCause(), "No cause expected when only message is provided");

        // toString behavior mirrors Throwable: includes message when not null
        String ts = ex.toString();
        assertTrue(ts.contains("SmbUnsupportedOperationException"), "toString should contain class name");
        if (msg != null) {

Section 4 -- Sui Generis Database Rights.

Where the Licensed Rights include Sui Generis Database Rights that
apply to Your use of the Licensed Material:

  a. for the avoidance of doubt, Section 2(a)(1) grants You the right
     to extract, reuse, reproduce, and Share all or a substantial
     portion of the contents of the database;

  b. if You include all or a substantial portion of the database

     *
     * @return the operating system family name (never null)
     */
    @Nonnull
    String family();

    /**
     * Checks if the current operating system belongs to the Windows family.
     * This includes all Windows variants (95, 98, ME, NT, 2000, XP, Vista, 7, 8, 10, 11).
     *
     * @return true if the current OS is any Windows variant, false otherwise
     */
    boolean isWindows();

            require(certificatePem == null) { "string includes multiple certificates" }
            certificatePem = match.groups[0]!!.value // Keep --BEGIN-- and --END-- for certificates.
          }

          "PRIVATE KEY" -> {
            require(pkcs8Base64 == null) { "string includes multiple private keys" }
            pkcs8Base64 = match.groups[2]!!.value // Include the contents only for PKCS8.
          }

Examples of behavior that contributes to creating a positive environment include:

*   Using welcoming and inclusive language.
*   Being respectful of differing viewpoints and experiences.
*   Gracefully accepting constructive criticism.
*   Focusing on what is best for the community.
*   Showing empathy towards other community members.

Examples of unacceptable behavior by participants include: