`Optional[EenType]` is eigenlijk een snelkoppeling voor `Union[EenType, None]`, ze zijn equivalent.

Dit betekent ook dat je in Python 3.10 `EenType | None` kunt gebruiken:

//// tab | Python 3.10+

```Python hl_lines="1"
{!> ../../docs_src/python_types/tutorial009_py310.py!}
```

////

  /**
   * Returns an encoding that behaves equivalently to this encoding, but omits any padding
   * characters as specified by <a href="http://tools.ietf.org/html/rfc4648#section-3.2">RFC 4648
   * section 3.2</a>, Padding of Encoded Data.
   */
  public abstract BaseEncoding omitPadding();

  /**
   * Returns an encoding that behaves equivalently to this encoding, but uses an alternate character
   * for padding.

 *   <li>The {@link #remove(Object)} and {@link #contains} operations require linear ({@code O(n)})
 *       time.
 *   <li>If you only access one end of the queue, and don't use a maximum size, this class is
 *       functionally equivalent to {@link PriorityQueue}, but significantly slower.
 * </ul>
 *
 * @author Sverre Sundsdal
 * @author Torbjorn Gannholm
 * @since 8.0
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault

   * under {@code directExecutor}: Not only might the wait for a lock be long, but if the running
   * thread was holding a lock, the listener may deadlock or break lock isolation.
   *
   * <p>This instance is equivalent to:
   *
   * <pre>{@code
   * final class DirectExecutor implements Executor {
   *   public void execute(Runnable r) {
   *     r.run();
   *   }
   * }
   * }</pre>
   *

          }
        };
      }
    };
  }

  /**
   * Returns the reversed view of this converter, which converts {@code this.convert(a)} back to a
   * value roughly equivalent to {@code a}.
   *
   * <p>The returned converter is serializable if {@code this} converter is.
   *
   * <p><b>Note:</b> you should not override this method. It is non-final for legacy reasons.
   */

function must not contain the package name component (for example,
function <code>Syscall</code> in package <code>syscall</code> should
use the name <code>·Syscall</code> instead of the equivalent name
<code>syscall·Syscall</code> in its <code>TEXT</code> directive).
For more complex situations, explicit annotation is needed.
These annotations use pseudo-instructions defined in the standard

  // +optional
  optional string imagePullPolicy = 14;

  // SecurityContext defines the security options the container should be run with.
  // If set, the fields of SecurityContext override the equivalent fields of PodSecurityContext.
  // More info: https://kubernetes.io/docs/tasks/configure-pod-container/security-context/
  // +optional
  optional SecurityContext securityContext = 15;

    // we shouldn't modify that array further.
    private boolean forceCopyElements;

    /**
     * Creates a new builder. The returned builder is equivalent to the builder generated by {@link
     * ImmutableSortedMultiset#orderedBy(Comparator)}.
     */
    @SuppressWarnings("unchecked")
    public Builder(Comparator<? super E> comparator) {

    except NameError:
      answer = input(question)  # pylint: disable=bad-builtin
  except EOFError:
    answer = ''
  return answer


def symlink_force(target, link_name):
  """Force symlink, equivalent of 'ln -sf'.

  Args:
    target: items to link to.
    link_name: name of the link.
  """
  try:
    os.symlink(target, link_name)
  except OSError as e:
    if e.errno == errno.EEXIST:

        i = pathSegmentDelimiterOffset
        if (segmentHasTrailingSlash) i++
      }
    }

    /** Adds a path segment. If the input is ".." or equivalent, this pops a path segment. */
    private fun push(
      input: String,
      pos: Int,
      limit: Int,
      addTrailingSlash: Boolean,
      alreadyEncoded: Boolean,
    ) {