*/
package org.codelibs.core.beans.impl;

import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.CoreMatchers.notNullValue;
import static org.hamcrest.CoreMatchers.nullValue;
import static org.hamcrest.CoreMatchers.sameInstance;
import static org.junit.Assert.assertThat;

import java.lang.reflect.Constructor;

import org.codelibs.core.beans.BeanDesc;
import org.codelibs.core.beans.ConstructorDesc;

 */
package org.apache.maven.project.inheritance.t05;

import java.io.File;
import java.util.Set;

import org.apache.maven.artifact.Artifact;
import org.apache.maven.project.MavenProject;
import org.apache.maven.project.inheritance.AbstractProjectInheritanceTestCase;
import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;

package com.google.common.collect;

import static com.google.common.base.Preconditions.checkNotNull;

import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import com.google.common.primitives.Primitives;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.io.InvalidObjectException;
import java.io.ObjectInputStream;
import java.io.Serializable;

import com.google.common.testing.CollectorTester;
import com.google.common.testing.NullPointerTester;
import com.google.common.testing.SerializableTester;
import java.util.Arrays;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import org.checkerframework.checker.nullness.qual.Nullable;

/**

from fastapi import APIRouter

router = APIRouter()


@router.get("/users/", tags=["users"])
async def read_users():
    return [{"username": "Rick"}, {"username": "Morty"}]


@router.get("/users/me", tags=["users"])
async def read_user_me():
    return {"username": "fakecurrentuser"}


@router.get("/users/{username}", tags=["users"])
async def read_user(username: str):

package org.codelibs.fess.crawler.extractor.impl;

import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.http.Header;
import org.apache.http.HttpEntity;
import org.apache.http.HttpHost;
import org.apache.http.auth.AuthScheme;
import org.apache.http.auth.AuthSchemeProvider;

package org.codelibs.fess.es.log.bsentity.dbmeta;

import java.time.LocalDateTime;
import java.util.List;
import java.util.Map;

import org.codelibs.fess.es.log.exentity.UserInfo;
import org.dbflute.Entity;
import org.dbflute.dbmeta.AbstractDBMeta;
import org.dbflute.dbmeta.info.ColumnInfo;
import org.dbflute.dbmeta.info.UniqueInfo;
import org.dbflute.dbmeta.name.TableSqlName;
import org.dbflute.dbmeta.property.PropertyGateway;

 */

package gradlebuild.buildutils.tasks

import org.gradle.api.DefaultTask
import org.gradle.api.GradleException
import org.gradle.api.artifacts.component.ModuleComponentIdentifier
import org.gradle.api.artifacts.result.ResolutionResult
import org.gradle.api.artifacts.result.ResolvedComponentResult
import org.gradle.api.file.RegularFileProperty
import org.gradle.api.tasks.Internal
import org.gradle.api.tasks.TaskAction

import com.google.common.collect.testing.google.SetGenerators.ContiguousSetHeadsetGenerator;
import com.google.common.collect.testing.google.SetGenerators.ContiguousSetSubsetGenerator;
import com.google.common.collect.testing.google.SetGenerators.ContiguousSetTailsetGenerator;
import com.google.common.testing.EqualsTester;
import java.util.Collection;
import java.util.Set;
import junit.framework.Test;
import junit.framework.TestCase;

Python স্ট্যান্ডার্ড লাইব্রেরি, Pydantic এর সাহায্যে বডি ঘোষণা করুন।

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

from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    price: float
    is_offer: Union[bool, None] = None


@app.get("/")