/// info

If you already know about virtual environments, how to create them and use them, you might want to skip this section. 🤓

///

/// tip

A **virtual environment** is different than an **environment variable**.

An **environment variable** is a variable in the system that can be used by programs.

1. **Import your GSA configuration** using the method described above
2. **Update client applications** to use Fess's JSON Search API (see [API Reference](#api-reference) section)
3. **Gradually migrate** from GSA query format to Fess's native API

///

### JSON Schema 的 `examples` 欄位 { #json-schemas-examples-field }

後來 JSON Schema 在新版本規範中新增了 [`examples`](https://json-schema.org/draft/2019-09/json-schema-validation.html#rfc.section.9.5) 欄位。

接著新的 OpenAPI 3.1.0 以最新版本（JSON Schema 2020-12）為基礎，該版本就包含這個新的 `examples` 欄位。

現在這個新的 `examples` 欄位優先於舊的單一（且客製）`example` 欄位，後者已被棄用。

            assertEquals(targetOffset, SMBUtil.readInt8(buffer, 8));
            assertEquals(length, SMBUtil.readInt4(buffer, 16));

            // Verify reserved section is zero
            assertEquals(0, SMBUtil.readInt4(buffer, 20));
        }

        @Test
        @DisplayName("Should handle multiple sequential encodings")
        void testMultipleSequentialEncodings() {

 *   <tr>
 *      <td>parameters</td>
 *      <td>N/A</td>
 *      <td>No</td>
 *      <td>Specifications for the parameters which this Mojo uses will be provided in <b>parameter</b> sub-elements
 *          in this section.
 *          <br>
 *          <i>NOTE: Parameters are discussed in more detail below.</i>
 *      </td>
 *   </tr>
 * </table>
 * <p>This is only a small set of all the options. A complete list can be found at

```

If you set an empty lookup bind password, the lookup bind will use the unauthenticated authentication mechanism, as described in [RFC 4513 Section 5.1.2](https://tools.ietf.org/html/rfc4513#section-5.1.2).

### User lookup

Check more details in the [Deployment](deployment/index.md) section.

///

## Benchmarks and speed { #benchmarks-and-speed }

  /** The HTTP {@code Host} header field name. */
  public static final String HOST = "Host";

  /**
   * The HTTP <a href="https://datatracker.ietf.org/doc/html/rfc7540#section-3.2.1">{@code
   * HTTP2-Settings} </a> header field name.
   *
   * @since 24.0
   */
  public static final String HTTP2_SETTINGS = "HTTP2-Settings";

  /** The HTTP {@code If-Match} header field name. */

It doesn't matter. **FastAPI** will know what to do.

/// note

If you don't know, check the [Async: *"In a hurry?"*](../../async.md#in-a-hurry) section about `async` and `await` in the docs.

///

## Integrated with OpenAPI { #integrated-with-openapi }

 * on what responses can be stored, and which requests can be satisfied by those stored responses.
 *
 * See [RFC 7234, 5.2](https://tools.ietf.org/html/rfc7234#section-5.2).
 */
class CacheControl internal constructor(
  /**
   * In a response, this field's name "no-cache" is misleading. It doesn't prevent us from caching