We are going to enforce that even though `q` is optional, whenever it is provided, **its length doesn't exceed 50 characters**.

### Import `Query` and `Annotated` { #import-query-and-annotated }

To achieve that, first import:

* `Query` from `fastapi`
* `Annotated` from `typing`

{* ../../docs_src/query_params_str_validations/tutorial002_an_py310.py hl[1,3] *}

/// info

			if err != nil {
				internalLogIf(ctx, err, logger.WarningKind)
				break
			}

			// Handle if we have some buckets in-memory those are stale.
			// first delete them and then replace the newer state()
			// from disk.
			diskBuckets := set.CreateStringSet()
			for _, bucket := range buckets {
				diskBuckets.Add(bucket.Name)
			}
			sys.RemoveStaleBuckets(diskBuckets)

	usersSysType UsersSysType

	rolesMap map[arn.ARN]string

	// Persistence layer for IAM subsystem
	store *IAMStoreSys

	// configLoaded will be closed and remain so after first load.
	configLoaded chan struct{}
}

// IAMUserType represents a user type inside MinIO server
type IAMUserType int

const (
	unknownIAMUserType IAMUserType = iota - 1
	regUser
	stsUser

// handle all cases where we have known types of errors returned by
// underlying storage layer.
func toObjectErr(oerr error, params ...string) error {
	if oerr == nil {
		return nil
	}

	// Unwarp the error first
	err := unwrapAll(oerr)

	if err == context.Canceled {
		return context.Canceled
	}

	switch err.Error() {
	case errVolumeNotFound.Error():
		apiErr := BucketNotFound{}
		if len(params) >= 1 {

  }

  @CollectionSize.Require(ZERO)
  public void testEmptyMultisetFirst() {
    assertNull(sortedMultiset.firstEntry());
    assertThrows(NoSuchElementException.class, () -> sortedMultiset.elementSet().first());
  }

  @CollectionFeature.Require(SUPPORTS_REMOVE)
  @CollectionSize.Require(ZERO)
  public void testEmptyMultisetPollFirst() {
    assertNull(sortedMultiset.pollFirstEntry());
  }

| `MINIO_IDENTITY_LDAP_GROUP_SEARCH_FILTER`   | `%s` and `%d`           |

## Managing User/Group Access Policy

        // We want to send the root artifact back in the result but we need to do this after the other dependencies
        // have been resolved.
        if (request.isResolveRoot()) {
            // Add the root artifact (as the first artifact to retain logical order of class path!)
            Set<Artifact> allArtifacts = new LinkedHashSet<>();
            allArtifacts.add(rootArtifact);
            allArtifacts.addAll(result.getArtifacts());

     * produced by this project build, if applicable. Hence, the returned list may have one or two elements
     * (never less than 1, never more than 2), depending on project packaging.
     * <p>
     * The list's first element is ALWAYS the project POM artifact. Presence of second element in the list depends
     * solely on the project packaging.
     *
     * @see #getPackaging()
     * @see #getPomArtifact()

      synchronized (mutex) {
        return sortedSet(delegate().tailSet(fromElement), mutex);
      }
    }

    @Override
    public E first() {
      synchronized (mutex) {
        return delegate().first();
      }
    }

    @Override
    public E last() {
      synchronized (mutex) {
        return delegate().last();
      }
    }

      synchronized (mutex) {
        return sortedSet(delegate().tailSet(fromElement), mutex);
      }
    }

    @Override
    public E first() {
      synchronized (mutex) {
        return delegate().first();
      }
    }

    @Override
    public E last() {
      synchronized (mutex) {
        return delegate().last();
      }
    }