/// tip | Tipp

Pydantic unterstützt auch <a href="https://docs.pydantic.dev/latest/concepts/validators/#field-before-validator" class="external-link" target="_blank">`BeforeValidator`</a> und andere. 🤓

///

///

## Предварительные шаги перед запуском { #previous-steps-before-starting }

Во многих случаях вы захотите выполнить некоторые шаги **перед запуском** приложения.

Например, запустить **миграции базы данных**.

Но чаще всего эти шаги нужно выполнять только **один раз**.

/// tip | Dica

O Pydantic também tem <a href="https://docs.pydantic.dev/latest/concepts/validators/#field-before-validator" class="external-link" target="_blank">`BeforeValidator`</a> e outros. 🤓

///

    *   Code that uses `tf.map_fn`/`tf.cond`/`tf.while_loop`/control flow as op
        layers and happens to work before TF 2.4. These will explicitly be
        unsupported now. Converting these ops to Functional API op layers was
        unreliable before TF 2.4, and prone to erroring incomprehensibly or
        being silently buggy.
    *   Code that directly asserts on a Keras symbolic value in cases where ops

   *     to primitives
   * @throws NullPointerException if {@code collection} or any of its elements is null
   * @since 1.0 (parameter was {@code Collection<Short>} before 12.0)
   */
  public static short[] toArray(Collection<? extends Number> collection) {
    if (collection instanceof ShortArrayAsList) {
      return ((ShortArrayAsList) collection).toShortArray();
    }

   *     to primitives
   * @throws NullPointerException if {@code collection} or any of its elements is null
   * @since 1.0 (parameter was {@code Collection<Short>} before 12.0)
   */
  public static short[] toArray(Collection<? extends Number> collection) {
    if (collection instanceof ShortArrayAsList) {
      return ((ShortArrayAsList) collection).toShortArray();
    }

func initTestServerWithBackend(ctx context.Context, t TestErrHandler, testServer TestServer, objLayer ObjectLayer, disks []string) TestServer {
	// Test Server needs to start before formatting of disks.
	// Get credential.
	credentials := globalActiveCred
	if !globalReplicationPool.IsSet() {
		globalReplicationPool.Set(nil)
	}
	testServer.Obj = objLayer
	testServer.rawDiskPaths = disks

    assertThrows(NullPointerException.class, () -> builder.add((String[]) elements));
    ImmutableList<String> result = builder.build();

    /*
     * Maybe it rejects all elements, or maybe it adds "a" before failing.
     * Either way is fine with us.
     */
    if (result.isEmpty()) {
      return;
    }
    assertTrue(ImmutableList.of("a").equals(result));
    assertEquals(1, result.size());
  }

if --replicate flag is not specified, replication of delete marker, permanent deletes, existing object replication and replica modification sync are all enabled. If you are using older mc versions, the ARN needs to be generated as a separate step before adding a replication rule.

> NOTE: If you are using a mc version below `RELEASE.2022-12-24T15-21-38Z`, the --remote-bucket flag needs an ARN generated by `mc admin bucket remote add` command. For  mc versions RELEASE.2021-09-02T09-21-27Z...

   * synchronization to safely receive incoming data frames, it is not intended for use by multiple
   * readers.
   */
  inner class FramingSource internal constructor(
    /** Maximum number of bytes to buffer before reporting a flow control error. */
    private val maxByteCount: Long,
    /**
     * True if either side has cleanly shut down this stream. We will receive no more bytes beyond
     * those already in the buffer.