```Python hl_lines="14"
{!../../docs_src/handling_errors/tutorial002.py!}
```

## ❎ 🛃 ⚠ 🐕‍🦺

👆 💪 🚮 🛃 ⚠ 🐕‍🦺 ⏮️ <a href="https://www.starlette.io/exceptions/" class="external-link" target="_blank">🎏 ⚠ 🚙 ⚪️➡️ 💃</a>.

➡️ 💬 👆 ✔️ 🛃 ⚠ `UnicornException` 👈 👆 (⚖️ 🗃 👆 ⚙️) 💪 `raise`.

&amp; 👆 💚 🍵 👉 ⚠ 🌐 ⏮️ FastAPI.

👆 💪 🚮 🛃 ⚠ 🐕‍🦺 ⏮️ `@app.exception_handler()`:

></td><td><code>str</code></td><td><strong>필수</strong> (<code>license_info</code>가 설정된 경우). API에 사용된 라이선스 이름입니다.</td></tr><tr><td><code>identifier</code></td><td><code>str</code></td><td>API에 대한 <a href="https://spdx.org/licenses/" class="external-link" target="_blank">SPDX</a> 라이선스 표현입니다. <code>identifier</code> 필드는 <code>url</code> 필드와 상호 배타적입니다. <small>OpenAPI 3.1.0, FastAPI 0.99.0부터 사용 가능</small></td></tr><tr><td><code>url</code></td><td><code>str</code></td><td>API에 사용된 라이선스의 URL입니다. URL 형식이어야...

import java.nio.charset.Charset;
import java.nio.charset.CharsetEncoder;
import java.nio.charset.CoderResult;
import java.nio.charset.CodingErrorAction;
import java.util.Arrays;

/**
 * An {@link InputStream} that converts characters from a {@link Reader} into bytes using an
 * arbitrary Charset.
 *
 * <p>This is an alternative to copying the data to an {@code OutputStream} via a {@code Writer},

import java.net.URLClassLoader;
import java.util.concurrent.CancellationException;
import java.util.concurrent.Future;
import java.util.concurrent.TimeoutException;
import junit.framework.TestCase;

/** Unit tests for {@link Futures#getChecked(Future, Class)}. */
public class FuturesGetCheckedTest extends TestCase {
  // Boring untimed-get tests:

  public void testGetCheckedUntimed_success() throws TwoArgConstructorException {

import java.nio.charset.Charset;
import java.nio.charset.CharsetEncoder;
import java.nio.charset.CoderResult;
import java.nio.charset.CodingErrorAction;
import java.util.Arrays;

/**
 * An {@link InputStream} that converts characters from a {@link Reader} into bytes using an
 * arbitrary Charset.
 *
 * <p>This is an alternative to copying the data to an {@code OutputStream} via a {@code Writer},

import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import junit.framework.AssertionFailedError;
import junit.framework.TestCase;

/**
 * Unit test for {@link Helpers}.
 *
 * @author Chris Povirk
 */
@GwtCompatible
public class HelpersTest extends TestCase {
  public void testNullsBeforeB() {
    testComparator(NullsBeforeB.INSTANCE, "a", "azzzzzz", null, "b", "c");
  }

 */

package com.google.common.graph;

import static com.google.common.truth.Truth.assertThat;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/** Tests for {@link ImmutableNetwork}. */
@RunWith(JUnit4.class)
public class ImmutableNetworkTest {

  @Test
  public void immutableNetwork() {
    MutableNetwork<String, Integer> mutableNetwork = NetworkBuilder.directed().build();

import java.io.ByteArrayOutputStream;
import java.io.DataInput;
import java.io.DataOutputStream;
import java.io.EOFException;
import java.io.IOException;
import junit.framework.TestCase;

/**
 * Test class for {@link LittleEndianDataInputStream}.
 *
 * @author Chris Nokleberg
 */
public class LittleEndianDataInputStreamTest extends TestCase {

  private byte[] data;

  @Override
  protected void setUp() throws Exception {

import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import junit.framework.TestCase;

/**
 * Test case for {@link ListenableFutureTask}.
 *
 * @author Sven Mawson
 */
public class ListenableFutureTaskTest extends TestCase {

  private ExecutorService exec;

  protected final CountDownLatch runLatch = new CountDownLatch(1);

import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import junit.framework.AssertionFailedError;
import junit.framework.TestCase;

/**
 * Unit test for {@link Helpers}.
 *
 * @author Chris Povirk
 */
@GwtCompatible
public class HelpersTest extends TestCase {
  public void testNullsBeforeB() {
    testComparator(NullsBeforeB.INSTANCE, "a", "azzzzzz", null, "b", "c");
  }