///

### <a href="https://flask.palletsprojects.com" class="external-link" target="_blank">Flask</a>

Flask est un "micro-framework", il ne comprend pas d'intégrations de bases de données ni beaucoup de choses qui sont fournies par défaut dans Django.

Cette simplicité et cette flexibilité permettent d'utiliser des bases de données NoSQL comme principal système de stockage de données.

**FastAPI** est totalement basé sur ces annotations de type, qui lui donnent de nombreux avantages.

Mais même si vous n'utilisez pas ou n'utiliserez jamais **FastAPI**, vous pourriez bénéficier d'apprendre quelques choses sur ces dernières.

/// note

Si vous êtes un expert Python, et que vous savez déjà **tout** sur les annotations de type, passez au chapitre suivant.

///

## Motivations

Prenons un exemple simple :

 *
 * {@snippet :
 * Closer closer = Closer.create();
 * try {
 *   InputStream in = closer.register(openInputStream());
 *   OutputStream out = closer.register(openOutputStream());
 *   // do stuff
 * } catch (Throwable e) {
 *   // ensure that any checked exception types other than IOException that could be thrown are
 *   // provided here, e.g. throw closer.rethrow(e, CheckedException.class);

      }
    }
  }

  /**
   * Generates a number in [0, 2^numBits) with an exponential distribution. The floor of the log2 of
   * the absolute value of the result is chosen uniformly at random in [0, numBits), and then the
   * result is chosen from those possibilities uniformly at random.
   *
   * <p>Zero is treated as having log2 == 0.
   */
  static double randomDouble(int maxExponent) {

 *
 * All event methods must execute fast, without external locking, cannot throw exceptions,
 * attempt to mutate the event parameters, or be reentrant back into the client.
 * Any IO - writing to files or network should be done asynchronously.
 */
internal abstract class ConnectionListener {
  /**
   * Invoked as soon as a call causes a connection to be started.
   */

   * default rounding mode: if the two nearest representable values are equally near, the one with
   * the least significant bit zero is chosen. (In such cases, both of the nearest representable
   * values are even integers; this method returns the one that is a multiple of a greater power of
   * two.)
   *

   * default rounding mode: if the two nearest representable values are equally near, the one with
   * the least significant bit zero is chosen. (In such cases, both of the nearest representable
   * values are even integers; this method returns the one that is a multiple of a greater power of
   * two.)
   *

			// if we have less drives than concurrency then choose
			// only the concurrency to be number of drives to start
			// with - since default '32' might be big and may not
			// complete in total time of 10s.
			if globalEndpoints.NEndpoints() < concurrency {
				concurrency = globalEndpoints.NEndpoints()
			}

			// Check if we have local disks per pool less than
			// the concurrency make sure we choose only the "start"

   - Document testing steps in the PR summary if manual testing was performed.

4. **Before Submitting**:
   - Run `make verify` to check formatting, linting, and tests.
   - Reference related issues (e.g., “Closes #1234”).
   - Notify team members via GitHub `@mentions` if urgent or complex.

## Reviewing PRs

Reviewers ensure MinIO’s commit history remains a clear, reliable record. Responsibilities include:

@SuppressSignatureCheck
sealed class CallEvent {
  abstract val timestampNs: Long
  abstract val call: Call

  val name: String
    get() = javaClass.simpleName

  /** Returns if the event closes this event, or null if this is no open event. */
  open fun closes(event: CallEvent): Boolean? = null

  data class DispatcherQueueStart(
    override val timestampNs: Long,
    override val call: Call,
    val dispatcher: Dispatcher,
  ) : CallEvent()