* (And even if annotations on local variables were permitted as an optional hint, no annotation
   * would be the right tool for the job here: {@code @Nullable} is the annotation that we're trying
   * to get rid of, and {@code @NonNull} would be wrong for our use case for the same reason as
   * {@code requireNonNull}: Our use case is the one in which {@code T} has parametric nullness—and
   * thus its value may be legitimately {@code null}.)

```

### Using WebIdentiy API

On another terminal run `web-identity.go` a sample client application which obtains JWT id_tokens from an identity provider, in our case its Keycloak. Uses the returned id_token response to get new temporary credentials from the MinIO server using the STS API call `AssumeRoleWithWebIdentity`.

```

## API Request Parameters

### Token

The OAuth 2.0 access token that is provided by the identity provider. Application must get this token by authenticating the application using client credential grants before the application makes an AssumeRoleWithClientGrants call.

| Params               | Value                                          |

     */
    public static Class<?> convertClass(final String className) throws ClassNotFoundRuntimeException {
        assertArgumentNotEmpty("className", className);
        final Class<?> clazz = primitiveNameToClassMap.get(className);
        if (clazz != null) {
            return clazz;
        }
        return forName(className);
    }

    /**

/// info | 情報

データを送るには、`POST` (もっともよく使われる)、`PUT`、`DELETE` または `PATCH` を使うべきです。

GET リクエストでボディを送信することは、仕様では未定義の動作ですが、FastAPI でサポートされており、非常に複雑な（極端な）ユースケースにのみ対応しています。

非推奨なので、Swagger UIを使った対話型のドキュメントにはGETのボディ情報は表示されません。さらに、中継するプロキシが対応していない可能性があります。

///

## Pydanticの `BaseModel` をインポート

ます初めに、 `pydantic` から `BaseModel` をインポートする必要があります:

📚 💼, 👆 💪 ⚙️ *➡ 🛠️ 👨‍🎨* 🔢 `response_model` ↩️ 📨 🆎.

👆 💪 ⚙️ `response_model` 🔢 🙆 *➡ 🛠️*:

* `@app.get()`
* `@app.post()`
* `@app.put()`
* `@app.delete()`
* ♒️.

{* ../../docs_src/response_model/tutorial001.py hl[17,22,24:27] *}

/// note

👀 👈 `response_model` 🔢 "👨‍🎨" 👩‍🔬 (`get`, `post`, ♒️). 🚫 👆 *➡ 🛠️ 🔢*, 💖 🌐 🔢 & 💪.

///

        final SearchEngineClient client = ComponentUtil.getSearchEngineClient();
        final String index = fessConfig.getIndexDocumentUpdateIndex();
        final Object url = params.get("url");
        if (url == null) {
            return StringUtil.EMPTY_STRINGS;
        }
        final SearchResponse response = client.prepareSearch(index)

          new ClassValue<Boolean>() {
            @Override
            protected Boolean computeValue(Class<?> type) {
              return true;
            }
          };
      classValue.get(exceptionType);
      retainedReferencesToOtherClassValues.add(classValue);
    }
  }

  @Benchmark
  int benchmarkGetChecked(int reps) {
    int tmp = 0;

    bits += signifRounded;
    /*
     * If signifRounded == 2^53, we'd need to set all of the significand bits to zero and add 1 to
     * the exponent. This is exactly the behavior we get from just adding signifRounded to bits
     * directly. If the exponent is MAX_DOUBLE_EXPONENT, we round up (correctly) to
     * Double.POSITIVE_INFINITY.
     */
    bits |= x.signum() & SIGN_MASK;

    Cache<Object, Object> cache =
        new AbstractCache<Object, Object>() {
          @Override
          public @Nullable Object getIfPresent(Object key) {
            return valueRef.get();
          }
        };

    assertNull(cache.getIfPresent(new Object()));

    Object newValue = new Object();
    valueRef.set(newValue);
    assertSame(newValue, cache.getIfPresent(new Object()));
  }