DependencyFilter dependencyFilter,
            Function<String, String> interpolator)
            throws ExtensionResolutionException {
        try {
            /* TODO: Enhance the PluginDependenciesResolver to provide a
             * resolveCoreExtension method which uses a CoreExtension
             * object instead of a Plugin as this makes no sense.
             */
            Plugin plugin = Plugin.newBuilder()

Default port '8022' can be changed via

```
--sftp="address=:3022"
```

### TLS (FTP)

Unlike SFTP server, FTP server is insecure by default. To operate under TLS mode, you need to provide certificates via

```
--ftp="tls-private-key=path/to/private.key" --ftp="tls-public-cert=path/to/public.crt"
```

//
// Since fs.FileInfo's Name method only returns the base name of
// the file it describes, it may be necessary to modify Header.Name
// to provide the full path name of the file.
//
// If fi implements [FileInfoNames]
// Header.Gname and Header.Uname
// are provided by the methods of the interface.
func FileInfoHeader(fi fs.FileInfo, link string) (*Header, error) {
	if fi == nil {

 * <p>See the Guava User's Guide's <a
 * href="https://github.com/google/guava/wiki/GraphsExplained#immutable-implementations">discussion
 * of the {@code Immutable*} types</a> for more information on the properties and guarantees
 * provided by this class.
 *
 * @author James Sexton
 * @author Jens Nyman
 * @param <N> Node parameter type
 * @param <V> Value parameter type
 * @since 20.0
 */
@Beta
@Immutable(containerOf = {"N", "V"})

Keep in mind that you can use `Response` to return anything else, or even create a custom sub-class.

/// note | "Technical Details"

You could also use `from starlette.responses import HTMLResponse`.

**FastAPI** provides the same `starlette.responses` as `fastapi.responses` just as a convenience for you, the developer. But most of the available responses come directly from Starlette.

///

### `Response`

## Enforcement

    implements NavigableMap<K, V> {
  /**
   * Returns a {@link Collector} that accumulates elements into an {@code ImmutableSortedMap} whose
   * keys and values are the result of applying the provided mapping functions to the input
   * elements. The generated map is sorted by the specified comparator.
   *
   * <p>If the mapped keys contain duplicates (according to the specified comparator), an {@code

    assertFailsWith<Exception> {
      badPublicSuffixDatabase.getEffectiveTldPlusOne("squareup.com")
    }.also { e ->
      assertEquals(firstFailure.toString(), e.toString())
    }
  }

  /** These tests are provided by [publicsuffix.org](https://publicsuffix.org/list/). */
  @Test fun publicSuffixDotOrgTestCases() {
    // Any copyright is dedicated to the Public Domain.
    // https://creativecommons.org/publicdomain/zero/1.0/

        DependencySelector depFilter = new AndDependencySelector(
                ScopeDependencySelector.legacy(
                        null, Arrays.asList(DependencyScope.TEST.id(), DependencyScope.PROVIDED.id())),
                OptionalDependencySelector.fromDirect(),
                new ExclusionDependencySelector());
        session.setDependencySelector(depFilter);

* Collect the money.
* Send a notification back to the API user (the external developer).
    * This will be done by sending a POST request (from *your API*) to some *external API* provided by that external developer (this is the "callback").

## The normal **FastAPI** app

Let's first see how the normal API app would look like before adding the callback.