if sql.NullTime(user.DeletedAt).Time.IsZero() {
		t.Fatalf("user's deleted at is zero")
	}

	sql := DB.Session(&gorm.Session{DryRun: true}).Delete(&user).Statement.SQL.String()
	if !regexp.MustCompile(`UPDATE .users. SET .deleted_at.=.* WHERE .users.\..id. = .* AND .users.\..deleted_at. IS NULL`).MatchString(sql) {
		t.Fatalf("invalid sql generated, got %v", sql)
	}

var errInvalidRangeSource = errors.New("Range specified exceeds source object size")

// error returned by disks which are to be initialized are waiting for the
// first server to initialize them in distributed set to initialize them.
var errNotFirstDisk = errors.New("Not first drive")

// error returned by first disk waiting to initialize other servers.
var errFirstDiskWait = errors.New("Waiting on other drives")

	// GCS storage decompresses a gzipped object by default and returns the data.
	// Refer to https://cloud.google.com/storage/docs/transcoding#decompressive_transcoding
	// Need to set `Accept-Encoding` header to `gzip` when issuing a GetObject call, to be able
	// to download the object in compressed state.
	// Calling ReadCompressed with true accomplishes that.

    }
}
```

### 7.2 Hierarchical Cache Management
```java
public class HierarchicalCacheManager {
    private final DirectoryLeaseManager leaseManager;
    private final Map<String, Set<String>> parentChildMap;
    
    public void invalidateHierarchy(String path) {
        // Invalidate all parent directories up to root
        String currentPath = path;

  }

  /**
   * Returns the empty bimap.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.
   */
  // Casting to any type is safe because the set will never hold any elements.
  @SuppressWarnings("unchecked")
  public static <K, V> ImmutableBiMap<K, V> of() {
    return (ImmutableBiMap<K, V>) RegularImmutableBiMap.EMPTY;
  }

      .isTrue()
  }

  @Test fun parseAll() {
    val headers =
      Headers
        .Builder()
        .add("Set-Cookie: a=b")
        .add("Set-Cookie: c=d")
        .build()
    val cookies = parseAll(url, headers)
    assertThat(cookies.size).isEqualTo(2)
    assertThat(cookies[0].toString()).isEqualTo("a=b; path=/")

  }

  @J2ktIncompatible // b/239034072: Kotlin varargs copy parameter arrays.
  public void testAsList_isAView() {
    double[] array = {0.0, 1.0};
    List<Double> list = Doubles.asList(array);
    list.set(0, 2.0);
    assertThat(array).isEqualTo(new double[] {2.0, 1.0});
    array[1] = 3.0;
    assertThat(list).containsExactly(2.0, 3.0).inOrder();
  }

  public void testAsList_toArray_roundTrip() {

## Developing

If you already cloned the <a href="https://github.com/fastapi/fastapi" class="external-link" target="_blank">fastapi repository</a> and you want to deep dive in the code, here are some guidelines to set up your environment.

### Virtual environment

Follow the instructions to create and activate a [virtual environment](virtual-environments.md){.internal-link target=_blank} for the internal code of `fastapi`.

```

The gzipped output contains debugging information for your system

## Decoding Metadata

Metadata is stored in `xl.meta` files for erasure coded objects. Each disk in the set containing the object has this file. The file format is a binary format and therefore requires tools to view values.

### Installing xl-meta

  public static int frequency(Iterable<?> iterable, @Nullable Object element) {
    if ((iterable instanceof Multiset)) {
      return ((Multiset<?>) iterable).count(element);
    } else if ((iterable instanceof Set)) {
      return ((Set<?>) iterable).contains(element) ? 1 : 0;
    }
    return Iterators.frequency(iterable.iterator(), element);
  }

  /**