Zum Beispiel:

```Python hl_lines="13-17  26"
{!../../docs_src/additional_responses/tutorial004.py!}
```

## Weitere Informationen zu OpenAPI-Responses

Um zu sehen, was genau Sie in die Responses aufnehmen können, können Sie die folgenden Abschnitte in der OpenAPI-Spezifikation überprüfen:

            * **FastAPI** adds a reference here to the global JSON Schemas in another place in your OpenAPI instead of including it directly. This way, other applications and clients can use those JSON Schemas directly, provide better code generation tools, etc.

///

The generated responses in the OpenAPI for this *path operation* will be:

```JSON hl_lines="3-12"
{

Import `TestClient`.

Create a `TestClient` by passing your **FastAPI** application to it.

Create functions with a name that starts with `test_` (this is standard `pytest` conventions).

Use the `TestClient` object the same way as you do with `httpx`.

Write simple `assert` statements with the standard Python expressions that you need to check (again, standard `pytest`).

```Python hl_lines="2  12  15-18"
{!../../docs_src/app_testing/tutorial001.py!}

				return errDiskNotFound
			}
			err := localDrives[index].MakeVol(ctx, bucket)
			if opts.ForceCreate && errors.Is(err, errVolumeExists) {
				// No need to return error when force create was
				// requested.
				return nil
			}
			return err
		}, index)
	}

	errs := g.Wait()
	return reduceWriteQuorumErrs(ctx, errs, bucketOpIgnoredErrs, (len(localDrives)/2)+1)

 */
package okhttp3.internal.http2

import java.io.IOException
import okhttp3.internal.and
import okio.BufferedSink
import okio.BufferedSource
import okio.ByteString

/**
 * This class was originally composed from the following classes in
 * [Twitter Hpack][twitter_hpack].
 *
 *  * `com.twitter.hpack.HuffmanEncoder`
 *  * `com.twitter.hpack.HuffmanDecoder`
 *  * `com.twitter.hpack.HpackUtil`
 *

                    writer.write(Constants.LINE_SEPARATOR);
                    return oldItem;
                }
                if (!item.equals(oldItem)) {
                    throw new DictionaryException("Protwords file was updated: old=" + oldItem + " : new=" + item);
                }
                try {
                    if (!item.isDeleted()) {
                        // update

                    writer.write(Constants.LINE_SEPARATOR);
                    return oldItem;
                }
                if (!item.equals(oldItem)) {
                    throw new DictionaryException("Stopwords file was updated: old=" + oldItem + " : new=" + item);
                }
                try {
                    if (!item.isDeleted()) {
                        // update

        boolean found = checkInResult(action, name, infos);
        if ( !found ) {
            // retry, the first watch may have already come back before the triggered change was active
            try {
                setupWatch(w);
                found = checkInResult(action, name, infos);
            }
            catch ( TimeoutException e ) {

        artifact.setResolved(true);
    }

    /** {@inheritDoc} */
    public File getFile() {
        // we need to get the latest file for the project, not the artifact that was created at one point in time
        return project.getArtifact().getFile();
    }

    /** {@inheritDoc} */
    public String getGroupId() {
        return artifact.getGroupId();
    }

    /** {@inheritDoc} */

**FastAPI** weiß, was jeweils zu tun ist und wie dasselbe Objekt wiederverwendet werden kann, sodass alle Hintergrundtasks zusammengeführt und anschließend im Hintergrund ausgeführt werden:

//// tab | Python 3.10+

```Python hl_lines="13  15  22  25"