* requirement that existing callers already fulfill).
 *
 * Disclaimer: Part of the reason that callers are so well adapted to `Function<A, B>` may be that
 * that is how the signature looked even prior to this comment! So naturally any change can break
 * existing users, but it can't *fix* existing users because any users who needed
 * `Function<@Nullable A, @Nullable B>` already had to find a workaround. Still, there is a *ton* of

            if ( ( flags & SmbConstants.O_CREAT ) == SmbConstants.O_CREAT ) {
                // create it if necessary
                if ( ( flags & SmbConstants.O_EXCL ) == SmbConstants.O_EXCL ) {
                    // fail if already exists
                    this.createDisposition = FILE_CREATE;
                }
                else {
                    this.createDisposition = FILE_OPEN_IF;
                }
            }

          MAVEN_DEBUG_OPTS="-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=${MAVEN_DEBUG_ADDRESS:-localhost:8000}"
        else
          echo "Ignoring --debug option as MAVEN_DEBUG_OPTS is already set"
        fi
        ;;
      --yjp)
        if [ ! -f "$YJPLIB" ]; then
          echo "Error: Unable to autodetect the YJP library location. Please set YJPLIB variable" >&2
          exit 1
        fi

To see an example, check the [Project Generators](../project-generation.md){.internal-link target=_blank}, they all include Celery already configured.

But if you need to access variables and objects from the same **FastAPI** app, or you need to perform small background tasks (like sending an email notification), you can simply just use `BackgroundTasks`.

## Recap

 * @param alreadyEncoded true to leave '%' as-is; false to convert it to '%25'.
 * @param strict true to encode '%' if it is not the prefix of a valid percent encoding.
 * @param plusIsSpace true to encode '+' as "%2B" if it is not already encoded.
 * @param unicodeAllowed true to leave non-ASCII codepoint unencoded.
 * @param charset which charset to use, null equals UTF-8.
 */
internal fun String.canonicalizeWithCharset(
  pos: Int = 0,

                          (N predecessor) -> EndpointPair.ordered(predecessor, node)),
                      Iterators.transform(
                          // filter out 'node' from successors (already covered by predecessors,
                          // above)
                          Sets.difference(graph.successors(node), ImmutableSet.of(node)).iterator(),

        if ((characteristics & Spliterator.SORTED) != 0) {
          Comparator<? super E> comparator = spliterator.getComparator();
          if (comparator == null) {
            // A sorted spliterator with no comparator is already using natural order.
            // (We could probably find a way to avoid rawtypes here if we wanted.)
            @SuppressWarnings({"unchecked", "rawtypes"})
            Comparator<? super E> naturalOrder =

@ElementTypesAreNonnullByDefault
public abstract class TreeTraverser<T> {

  /**
   * Returns a tree traverser that uses the given function to navigate from a node to its children.
   * This is useful if the function instance already exists, or so that you can supply a lambda
   * expressions. If those circumstances don't apply, you probably don't need to use this; subclass
   * {@code TreeTraverser} and implement its {@link #children} method directly.
   *

  V get(K key, Callable<? extends V> loader) throws ExecutionException;

  /**
   * Returns a map of the values associated with {@code keys} in this cache. The returned map will
   * only contain entries which are already present in the cache.
   *
   * @since 11.0
   */
  /*
   * <? extends Object> is mostly the same as <?> to plain Java. But to nullness checkers, they

	"Reset Content":                   http.StatusResetContent,
	"Partial Content":                 http.StatusPartialContent,
	"Multi-Status":                    http.StatusMultiStatus,
	"Already Reported":                http.StatusAlreadyReported,
	"IM Used":                         http.StatusIMUsed,
	"Multiple Choices":                http.StatusMultipleChoices,