```Python hl_lines="1  7-12  19-20"
{!../../docs_src/dataclasses/tutorial001.py!}
```

Isso ainda é suportado graças ao **Pydantic**, pois ele tem <a href="https://docs.pydantic.dev/latest/concepts/dataclasses/#use-of-stdlib-dataclasses-with-basemodel" class="external-link" target="_blank">suporte interno para `dataclasses`</a>.

JSON Schemaの最新バージョンでは<a href="https://json-schema.org/draft/2019-09/json-schema-validation.html#rfc.section.9.5" class="external-link" target="_blank">`examples`</a>というフィールドを定義していますが、OpenAPIは`examples`を持たない古いバージョンのJSON Schemaをベースにしています。

        assertThrows(
                InvalidArtifactRTException.class,
                () -> new DefaultArtifact(
                        groupId, artifactId, version, scope, type, classifier, artifactHandler, false));
        if (version == null) {
            assertThrows(
                    InvalidArtifactRTException.class,
                    () -> new DefaultArtifact(

package org.apache.maven.api.model;

import java.io.Serializable;
import java.util.Collection;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.Map;

/**
 * Class InputLocation.
 */
public class InputLocation implements Serializable, InputLocationTracker {
    private final int lineNumber;
    private final int columnNumber;
    private final InputSource source;

message RuntimeClass {
  // More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata
  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.ObjectMeta metadata = 1;

  // handler specifies the underlying runtime and configuration that the CRI
  // implementation will use to handle pods of this class. The possible values

import org.dbflute.utflute.core.PlainTestCase;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * @author shinsuke
 *
 */
public class XmlExtractorTest extends PlainTestCase {
    private static final Logger logger = LoggerFactory.getLogger(XmlExtractorTest.class);

    public XmlExtractor xmlExtractor;

    @Override
    protected void setUp() throws Exception {
        super.setUp();

package jcifs.smb1.util.transport;

import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;

public class TransportException extends IOException {

    private Throwable rootCause;

    public TransportException() {
    }
    public TransportException( String msg ) {
        super( msg );
    }
    public TransportException( Throwable rootCause ) {
        this.rootCause = rootCause;
    }

from fastapi import Depends, FastAPI, HTTPException

app = FastAPI()


class InternalError(Exception):
    pass


def get_username():
    try:
        yield "Rick"
    except InternalError:
        print("We don't swallow the internal error here, we raise again 😎")
        raise


@app.get("/items/{item_id}")
def get_item(item_id: str, username: str = Depends(get_username)):
    if item_id == "portal-gun":

import mockwebserver3.MockWebServer
import okhttp3.testing.PlatformRule
import org.junit.jupiter.api.BeforeEach
import org.junit.jupiter.api.Test
import org.junit.jupiter.api.extension.RegisterExtension

class LoomTest {
  @JvmField
  @RegisterExtension
  val platform = PlatformRule()

  @JvmField
  @RegisterExtension
  val clientTestRule = OkHttpClientTestRule()

  private lateinit var server: MockWebServer

import static java.lang.annotation.ElementType.FIELD;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.TYPE;
import static java.lang.annotation.RetentionPolicy.CLASS;

import com.google.common.annotations.GwtCompatible;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;

/**