credential := fmt.Sprintf("%s/%s", accessKeyID, scope)

	// Set URL query.
	query := req.URL.Query()
	query.Set("X-Amz-Algorithm", signV4Algorithm)
	query.Set("X-Amz-Date", date.Format(iso8601Format))
	query.Set("X-Amz-Expires", strconv.FormatInt(expires, 10))
	query.Set("X-Amz-SignedHeaders", "host")
	query.Set("X-Amz-Credential", credential)
	query.Set("X-Amz-Content-Sha256", unsignedPayload)

			},
		},
		// ListObjectsResult-23.
		// Prefix is set to "Asia/India/" in the testCase, and delimiter is not set (testCase 55).
		23: {
			IsTruncated: false,
			Objects: []ObjectInfo{
				{Name: "Asia/India/India-summer-photos-1"},
				{Name: "Asia/India/Karnataka/Bangalore/Koramangala/pics"},
			},
		},

		// ListObjectsResult-24.
		// Prefix is set to "Asia" in the testCase, and delimiter is not set (testCase 56).

   * set. The order in which these subsets appear in the outer set is undefined. Note that the power
   * set of the empty set is not the empty set, but a one-element set containing the empty set.
   *
   * <p>The returned set and its constituent sets use {@code equals} to decide whether two elements
   * are identical, even if the input set uses a different concept of equivalence.
   *

		Rules: []Rule{
			{
				ID:     "rule-1",
				Status: "Enabled",
				Filter: Filter{
					set: true,
					Prefix: Prefix{
						string: "folder1/folder1/exp_dt=2022-",
						set:    true,
					},
				},
				Expiration: Expiration{
					Days: 1,
					set:  true,
				},
			},
		},
	}
	tests := []struct {
		opts ObjectOpts
		lc   Lifecycle
		want int

    cache.close()
    createNewCacheWithSize(10)
    set("a", "a", "a")
    set("b", "b", "b")
    set("c", "c", "c")
    set("d", "d", "d")
    set("e", "e", "e")
    cache["b"]!!.close() // 'B' is now least recently used.

    // Causing the size to grow to 12 should evict 'A'.
    set("f", "f", "f")
    // Causing the size to grow to 12 should evict 'C'.
    set("g", "g", "g")
    cache.flush()

		var wg sync.WaitGroup
		for idx, set := range erasureSet.sets {
			if opts.Set != nil && *opts.Set != idx {
				continue
			}
			wg.Add(1)
			go func(idx int, set *erasureObjects) {
				defer wg.Done()

				errs[idx] = set.listAndHeal(ctx, bucket, prefix, opts.ScanMode, healEntry)
			}(idx, set)
		}
		wg.Wait()
		poolErrs = append(poolErrs, errs)
	}

  }

  @VisibleForTesting
  static <E extends @Nullable Object> Set<E> set(Set<E> set, @CheckForNull Object mutex) {
    return new SynchronizedSet<>(set, mutex);
  }

  static class SynchronizedSet<E extends @Nullable Object> extends SynchronizedCollection<E>
      implements Set<E> {

    SynchronizedSet(Set<E> delegate, @CheckForNull Object mutex) {
      super(delegate, mutex);
    }

  }

  @VisibleForTesting
  static <E extends @Nullable Object> Set<E> set(Set<E> set, @CheckForNull Object mutex) {
    return new SynchronizedSet<>(set, mutex);
  }

  static class SynchronizedSet<E extends @Nullable Object> extends SynchronizedCollection<E>
      implements Set<E> {

    SynchronizedSet(Set<E> delegate, @CheckForNull Object mutex) {
      super(delegate, mutex);
    }

            allowed by the alias or set of aliases defined.
            """
        ),
    ] = None,
    serialization_alias: Annotated[
        Union[str, None],
        Doc(
            """
            'Blacklist' validation step. The vanilla parameter field will be the
            single one of the alias' or set of aliases' fields and all the other

	}

	// Compute net policy change effect and updated policy mapping
	existingPolicySet := mp.policySet()
	policiesToUpdate := set.CreateStringSet(policies...)
	var newPolicySet set.StringSet
	newPolicyMapping := mp
	if isAttach {
		// new policies to attach => inputPolicies - existing (set difference)
		policiesToUpdate = policiesToUpdate.Difference(existingPolicySet)
		// validate that new policies to add are defined.