}
                                }
                            },
                        },
                    },
                    "summary": "Save Union Body",
                    "operationId": "save_union_body_items__post",
                    "requestBody": {
                        "content": {
                            "application/json": {

    }

    // Stream the response to the System.out as it is returned from the server.
    val out = System.out.sink()
    val source = response.body.source()
    while (!source.exhausted()) {
      out.write(source.buffer, source.buffer.size)
      out.flush()
    }

    response.body.close()
  } catch (e: IOException) {
    e.printStackTrace()
  } finally {
    close()
  }

## Beispielaktualisierung { #example-upgrade }

Ändern Sie jetzt die Datei `main.py`, um den <abbr title="Body – Körper, Inhalt: Der eigentliche Inhalt einer Nachricht, nicht die Metadaten">Body</abbr> eines `PUT`-Requests zu empfangen.

Deklarieren Sie den Body mit Standard-Python-Typen, dank Pydantic.

```Python hl_lines="4  9-12  25-27"
from typing import Union

from fastapi import FastAPI

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.api.admin.reqheader;

import org.codelibs.fess.app.web.api.admin.BaseSearchBody;

/**
 * Search request body for request header administration API.
 */
public class SearchBody extends BaseSearchBody {

    /**
     * Default constructor.
     */
    public SearchBody() {
        super();
    }

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.api.admin.user;

import org.codelibs.fess.app.web.api.admin.BaseSearchBody;

/**
 * Search request body for user administration API.
 */
public class SearchBody extends BaseSearchBody {

    /**
     * Default constructor.
     */
    public SearchBody() {
        super();
    }

    /** User ID */

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.api.admin.fileauth;

import org.codelibs.fess.app.web.api.admin.BaseSearchBody;

/**
 * Search request body for file authentication administration API.
 */
public class SearchBody extends BaseSearchBody {

    /**
     * Default constructor.
     */
    public SearchBody() {
        super();
    }

 * limitations under the License.
 */
package okhttp3.internal.cache

import java.io.IOException
import okio.Sink

interface CacheRequest {
  @Throws(IOException::class)
  fun body(): Sink

  fun abort()

        // TODO support other type
        return "<?xml version=\"1.0\"?>\n<doc>\n";
    }

    /**
     * Returns the body of the result data for a single value.
     * @param name The name of the field.
     * @param value The value of the field.
     * @return The result data body.
     */
    protected String getResultDataBody(final String name, final String value) {
        // TODO support other type

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.api.admin.dataconfig;

import org.codelibs.fess.app.web.admin.dataconfig.CreateForm;

/**
 * Request body for creating data config via REST API.
 * Extends CreateForm to inherit validation and field definitions.
 */
public class CreateBody extends CreateForm {

    /**
     * Creates a new CreateBody instance.
     */

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.api.admin.relatedcontent;

import org.codelibs.fess.app.web.api.admin.BaseSearchBody;

/**
 * Search request body for related content administration API.
 */
public class SearchBody extends BaseSearchBody {

    /**
     * Default constructor.
     */
    public SearchBody() {
        super();
    }