this.journalFileBackup = directory / JOURNAL_FILE_BACKUP
  }

  @Synchronized
  @Throws(IOException::class)
  fun initialize() {
    this.assertThreadHoldsLock()

    if (initialized) {
      return // Already initialized.
    }

    // If a bkp file exists, use it instead.
    if (fileSystem.exists(journalFileBackup)) {

   *
   * Note that if the application chooses to not call this method to initialize the cache. By
   * default, OkHttp will perform lazy initialization upon the first usage of the cache.
   */
  @Throws(IOException::class)
  fun initialize() {
    cache.initialize()
  }

  /**
   * Closes the cache and deletes all of its stored values. This will delete all files in the cache

     <dependency>
       <groupId>com.squareup.okio</groupId>
       <artifactId>okio</artifactId>
       <version>1.6.0</version>
     </dependency>
     ```

 *  New: `Cache.initialize()`. Call this on a background thread to eagerly
    initialize the response cache.
 *  New: Fold `MockWebServerRule` into `MockWebServer`. This makes it easier to
    write JUnit tests with `MockWebServer`. The `MockWebServer` library now

            parameters = ByteString.EMPTY,
          )
      }
    }

    private fun generateKeyPair(): KeyPair {
      return KeyPairGenerator.getInstance(keyAlgorithm).run {
        initialize(keySize, SecureRandom())
        generateKeyPair()
      }
    }

    companion object {
      private const val DEFAULT_DURATION_MILLIS = 1000L * 60 * 60 * 24 // 24 hours.
    }
  }

                <version>1.4</version>
                <executions>
                    <execution>
                        <id>enforce-versions</id>
                        <phase>initialize</phase>
                        <goals>
                            <goal>enforce</goal>
                        </goals>
                        <configuration>
                            <fail>true</fail>

    var authenticator: Authenticator = Authenticator { route, response -> TODO() }
  }

  @Test
  fun cache() {
    val cache = Cache(File("/cache/"), Integer.MAX_VALUE.toLong())
    cache.initialize()
    cache.delete()
    cache.evictAll()
    val urls: MutableIterator<String> = cache.urls()
    val writeAbortCount: Int = cache.writeAbortCount()
    val writeSuccessCount: Int = cache.writeSuccessCount()

    ```

=== "Python 3.8+"

    ```Python hl_lines="9"
    {!> ../../../docs_src/sql_databases/sql_app/main.py!}
    ```

#### Alembic Note

Normally you would probably initialize your database (create tables, etc) with <a href="https://alembic.sqlalchemy.org/en/latest/" class="external-link" target="_blank">Alembic</a>.

And you would also use Alembic for "migrations" (that's its main job).

    if (compileTimeInitializer != null) {
        return KtConstantInitializerValue(compileTimeInitializer.toKtConstantValue(), initializer)
    }
    if (initializer != null) {
        val bindingContext = analysisContext.analyze(initializer)
        val constantValue = ConstantExpressionEvaluator.getConstant(initializer, bindingContext)
        if (constantValue != null) {

 * ensures the symbols remain available and with the expected parameter and return types.
 */
@Suppress(
  "DEPRECATION_ERROR",
  "UNUSED_VALUE",
  "UNUSED_VARIABLE",
  "VARIABLE_WITH_REDUNDANT_INITIALIZER",
)
class KotlinDeprecationErrorTest {
  private val factory = TestValueFactory()

  @AfterEach
  fun tearDown() {
    factory.close()
  }

  @Test @Disabled
  fun address() {

<div class="termy">

```console
// Use the command new-lang, pass the language code as a CLI argument
$ python ./scripts/docs.py new-lang ht

Successfully initialized: docs/ht
Updating ht
Updating en
```

</div>

Vous pouvez maintenant vérifier dans votre éditeur de code le répertoire nouvellement créé `docs/ht/`.

!!! tip