print(user_dict)
```

we would get a Python `dict` with:

```Python
{
    'username': 'john',
    'password': 'secret',
    'email': '******@****.***',
    'full_name': None,
}
```

#### Unwrapping a `dict`

If we take a `dict` like `user_dict` and pass it to a function (or class) with `**user_dict`, Python will "unwrap" it. It will pass the keys and values of the `user_dict` directly as key-value arguments.

     * is (FirCheckedSafeCallSubject)[org.jetbrains.kotlin.fir.expressions.FirCheckedSafeCallSubject] which requires additional unwrapping
     * to be used for call resolution.
     */
    private fun findReceiverFirExpression(receiverExpression: KtExpression): FirExpression? {
        if (receiverExpression is KtStatementExpression) {

    private val problemFactory: ProblemFactory
) : TaskExecutionGraphInternal {

    private
    val delegate: TaskExecutionGraphInternal = when (taskGraph) {
        // 'unwrapping' ensures that there are no chains of delegation
        is CrossProjectConfigurationReportingTaskExecutionGraph -> taskGraph.delegate
        else -> taskGraph
    }

 * ExecutionException} when the exception thrown by a task is an unchecked exception. However, it
 * may also wrap a checked exception in some cases.
 *
 * <p>When wrapping an {@code Error} from another thread, prefer {@link ExecutionError}. When
 * wrapping a checked exception, prefer {@code ExecutionException}.
 *
 * @author Charles Fry
 * @since 10.0
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault

        super(shortMessage);
        this.source = source;
        this.longMessage = longMessage;
    }

    /**
     * Constructs a new {@code MojoException} wrapping an underlying {@code Throwable}
     * and providing a {@code message}.
     */
    public MojoException(String message, Throwable cause) {
        super(message, cause);
    }

    /**

 * ExecutionException} when the exception thrown by a task is an unchecked exception. However, it
 * may also wrap a checked exception in some cases.
 *
 * <p>When wrapping an {@code Error} from another thread, prefer {@link ExecutionError}. When
 * wrapping a checked exception, prefer {@code ExecutionException}.
 *
 * @author Charles Fry
 * @since 10.0
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault

  private final List<E> delegate;
  @Nullable E forSerialization;

  RegularImmutableList(List<E> delegate) {
    // TODO(cpovirk): avoid redundant unmodifiableList wrapping
    this.delegate = unmodifiableList(delegate);
  }

  @Override
  List<E> delegateList() {
    return delegate;
  }

	addr, err := windows.MapViewOfFile(h, syscall.FILE_MAP_READ|syscall.FILE_MAP_WRITE, 0, 0, 0)
	if err != nil {
		return Data{}, fmt.Errorf("MapViewOfFile %s: %w", f.Name(), err)
	}
	// need to remember addr and h for unmapping
	return Data{f, unsafe.Slice((*byte)(unsafe.Pointer(addr)), size), h}, nil
}

func munmapFile(d Data) error {
	err := windows.UnmapViewOfFile(uintptr(unsafe.Pointer(&d.Data[0])))
	x, ok := d.Windows.(windows.Handle)

public abstract class ForwardingImmutableSet<E> extends ImmutableSet<E> {
  private final transient Set<E> delegate;

  ForwardingImmutableSet(Set<E> delegate) {
    // TODO(cpovirk): are we over-wrapping?
    this.delegate = Collections.unmodifiableSet(delegate);
  }

  @Override
  public UnmodifiableIterator<E> iterator() {
    return Iterators.unmodifiableIterator(delegate.iterator());
  }

  @Override

	*out = *t
}

// NewTime returns a wrapped instance of the provided time
func NewTime(time time.Time) Time {
	return Time{time}
}

// Date returns the Time corresponding to the supplied parameters
// by wrapping time.Date.
func Date(year int, month time.Month, day, hour, min, sec, nsec int, loc *time.Location) Time {
	return Time{time.Date(year, month, day, hour, min, sec, nsec, loc)}
}

// Now returns the current local time.