And then another background task generated at the *path operation function* will write a message using the `email` path parameter.

## Technical Details

The class `BackgroundTasks` comes directly from <a href="https://www.starlette.io/background/" class="external-link" target="_blank">`starlette.background`</a>.

/**
 * Unit test for {@link ComparisonChain}.
 *
 * @author Kevin Bourrillion
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public class ComparisonChainTest extends TestCase {
  private static final DontCompareMe DONT_COMPARE_ME = new DontCompareMe();

  private static class DontCompareMe implements Comparable<DontCompareMe> {
    @Override
    public int compareTo(DontCompareMe o) {
      throw new AssertionFailedError();

app = FastAPI()


data = {
    "plumbus": {"description": "Freshly pickled plumbus", "owner": "Morty"},
    "portal-gun": {"description": "Gun to create portals", "owner": "Rick"},
}


class OwnerError(Exception):
    pass


def get_username():
    try:
        yield "Rick"
    except OwnerError as e:
        raise HTTPException(status_code=400, detail=f"Owner error: {e}")

from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    description: str | None = None
    price: float
    tax: float = 10.5


items = {
    "foo": {"name": "Foo", "price": 50.2},
    "bar": {"name": "Bar", "description": "The Bar fighters", "price": 62, "tax": 20.2},
    "baz": {
        "name": "Baz",
        "description": "There goes my baz",

import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.exception.InvalidAccessTokenException;
import org.codelibs.fess.util.ComponentUtil;

import jakarta.servlet.http.HttpServletRequest;

public class AccessTokenHelper {

    protected static final String BEARER = "Bearer";

    protected Random random = new SecureRandom();

    public String generateAccessToken() {

import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.es.config.bsentity.BsJobLog;
import org.codelibs.fess.util.ComponentUtil;

/**
 * @author FreeGen
 */
public class JobLog extends BsJobLog {

    private static final long serialVersionUID = 1L;

    private ScheduledJob scheduledJob;

    public JobLog() {
    }

    public JobLog(final ScheduledJob scheduledJob) {

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.util;

import java.util.Arrays;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public final class JvmUtil {
    private static final Pattern VERSION_PREFIX_PATTERN = Pattern.compile("([0-9]+)(\\-?):(.*)");

    private JvmUtil() {
        // nothing
    }

import org.codelibs.fess.util.ComponentUtil;

import jakarta.validation.ConstraintDefinitionException;
import jakarta.validation.ConstraintValidator;
import jakarta.validation.ConstraintValidatorContext;

public class UriTypeValidator implements ConstraintValidator<UriType, String> {
    private String[] protocols;

    @Override
    public void initialize(final UriType uriType) {
        protocols = switch (uriType.protocolType()) {

import org.codelibs.fess.app.web.api.admin.FessApiAdminAction;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.JsonResponse;

/**
 * @author Keiichi Watanabe
 */
public class ApiAdminSysteminfoAction extends FessApiAdminAction {

    // ===================================================================================

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.dict.stemmeroverride;

import org.codelibs.fess.unit.UnitFessTestCase;

public class StemmerOverrideItemTest extends UnitFessTestCase {

    public void test_new1() {
        final StemmerOverrideItem stemmerOverrideItem = new StemmerOverrideItem(1, "aaa", "a");