* Swagger UI.
    * ReDoc.

---

Az önceki örneğe geri dönelim, **FastAPI**'ın yapacaklarına bir bakış atalım:

* `item_id`'nin `GET` ve `PUT` istekleri için, yolda olup olmadığının kontol edecek.
* `item_id`'nin `GET` ve `PUT` istekleri için, tipinin `int` olduğunu doğrulayacak.
    * Eğer değilse, sebebini belirten bir hata mesajı gösterecek.

  @Test
  fun permitsRequestBody() {
    assertTrue(permitsRequestBody("POST"))
    assertFalse(permitsRequestBody("GET"))
  }

  @Test
  fun requiresRequestBody() {
    assertTrue(requiresRequestBody("PUT"))
    assertFalse(requiresRequestBody("GET"))
  }

  @Test
  fun hasBody() {
    val request = Request.Builder().url("http://example.com").build()
    val response =
      Response
        .Builder()

    * Swagger UI.
    * ReDoc.

---

Coming back to the previous code example, **FastAPI** will:

* Validate that there is an `item_id` in the path for `GET` and `PUT` requests.
* Validate that the `item_id` is of type `int` for `GET` and `PUT` requests.
    * If it is not, the client will see a useful, clear error.

      Class<T> enumClass) {
    Map<String, WeakReference<? extends Enum<?>>> result = new HashMap<>();
    for (T enumInstance : EnumSet.allOf(enumClass)) {
      result.put(enumInstance.name(), new WeakReference<Enum<?>>(enumInstance));
    }
    enumConstantCache.put(enumClass, result);
    return result;
  }

  static <T extends Enum<T>> Map<String, WeakReference<? extends Enum<?>>> getEnumConstants(
      Class<T> enumClass) {

  }

  private static void add(
      Map<Class<?>, Class<?>> forward,
      Map<Class<?>, Class<?>> backward,
      Class<?> key,
      Class<?> value) {
    forward.put(key, value);
    backward.put(value, key);
  }

  /**
   * Returns an immutable set of all nine primitive types (including {@code void}). Note that a

   *     FIRST_LETTER_MULTIMAP = MultimapBuilder.treeKeys().arrayListValues().build();
   *     FIRST_LETTER_MULTIMAP.put('b', "anana");
   *     FIRST_LETTER_MULTIMAP.put('a', "pple");
   *     FIRST_LETTER_MULTIMAP.put('a', "sparagus");
   *     FIRST_LETTER_MULTIMAP.put('c', "arrot");
   *     FIRST_LETTER_MULTIMAP.put('c', "herry");
   * }
   * }
   *
   * <p>To collect to an {@link ImmutableMultimap}, use either {@link

        artifacts.add(new DefaultArtifact("g", "a3", "v", "compile", "jar", "", null));
        artifacts.add(new DefaultArtifact("g", "a4", "v", "compile", "jar", "", null));

        cache.put(project1, new SetWithResolutionResult(null, artifacts));

        assertArrayEquals(
                artifacts.toArray(new Artifact[0]),
                cache.get(project1).getArtifacts().toArray(new Artifact[0]));

      checkRecording();
      equivalentExpectationsBuilder.put(a, b, true);
    }

    void expectDistinct(Object a, Object b) {
      checkRecording();
      equivalentExpectationsBuilder.put(a, b, false);
    }

    void expectHash(Object object, int hash) {
      checkRecording();
      hashExpectationsBuilder.put(object, hash);
    }

    void replay() {
      checkRecording();

      checkRecording();
      equivalentExpectationsBuilder.put(a, b, true);
    }

    void expectDistinct(Object a, Object b) {
      checkRecording();
      equivalentExpectationsBuilder.put(a, b, false);
    }

    void expectHash(Object object, int hash) {
      checkRecording();
      hashExpectationsBuilder.put(object, hash);
    }

    void replay() {
      checkRecording();

  @Override
  public @Nullable V put(
      @ParametricNullness R rowKey, @ParametricNullness C columnKey, @ParametricNullness V value) {
    return row(rowKey).put(columnKey, value);
  }

  @Override
  public void putAll(Table<? extends R, ? extends C, ? extends V> table) {
    for (Table.Cell<? extends R, ? extends C, ? extends V> cell : table.cellSet()) {
      put(cell.getRowKey(), cell.getColumnKey(), cell.getValue());