# Unterabhängigkeiten { #sub-dependencies }

Sie können Abhängigkeiten erstellen, die **Unterabhängigkeiten** haben.

Diese können so **tief** verschachtelt sein, wie nötig.

**FastAPI** kümmert sich darum, sie aufzulösen.

## Erste Abhängigkeit, „Dependable“ { #first-dependency-dependable }

Sie könnten eine erste Abhängigkeit („Dependable“) wie folgt erstellen:

{* ../../docs_src/dependencies/tutorial005_an_py310.py hl[8:9] *}

	streamingContentEncoding      = "aws-chunked"
	awsTrailerHeader              = "X-Amz-Trailer"
	trailerKVSeparator            = ":"
)

// getChunkSignature - get chunk signature.
// Does not update anything in cr.
func (cr *s3ChunkedReader) getChunkSignature() string {
	hashedChunk := hex.EncodeToString(cr.chunkSHA256Writer.Sum(nil))

	// Calculate string to sign.
	alg := signV4ChunkedAlgorithm + "\n"
	stringToSign := alg +

   * asynchronous only if {@link CacheLoader#reload} was overridden with an asynchronous
   * implementation.
   *
   * <p>Returns without doing anything if another thread is currently loading the value for {@code
   * key}. If the cache loader associated with this cache performs refresh asynchronously then this
   * method may return before refresh completes.
   *

MAVEN_HOME=`dirname "$PRG"`/..

# make it fully qualified
MAVEN_HOME=`cd "$MAVEN_HOME" && pwd`

cd "$saveddir"

CLASSWORLDS_CONF="$MAVEN_HOME/bin/m2.conf"

# For Cygwin and MinGW, ensure paths are in Unix format before anything is touched
if $cygwin || $mingw ; then
  [ -n "$JAVA_HOME" ] &&
    JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
fi

if [ -n "$JAVA_HOME" ] ; then
  if [ -x "$JAVA_HOME/jre/sh/java" ] ; then

      /*
       * Since reflection can't tell the difference between <T> and <T extends Object>, it doesn't
       * make a ton of sense to have a separate tests for each. But having tests for each doesn't
       * really hurt anything, and maybe it will serve a purpose in a future in which Java has a
       * built-in nullness feature?
       */
      "ExtendsObject",
    })
    <T extends Object> void withObjectBound(List<T> list) {}

But Facebook login doesn't support OpenID Connect. It has its own flavor of OAuth2.

### OpenID (not "OpenID Connect") { #openid-not-openid-connect }

There was also an "OpenID" specification. That tried to solve the same thing as **OpenID Connect**, but was not based on OAuth2.

So, it was a complete additional system.

It is not very popular or used nowadays.

## OpenAPI { #openapi }

   * `new Integer` (as we do) instead of `Integer.valueOf`. However, under J2KT, `new Integer`
   * gets translated back to `Integer.valueOf` because that is the only thing J2KT can support. And
   * anyway, it's nice to avoid `Integer.valueOf` because the Android toolchain optimizes multiple
   * `Integer.valueOf` calls into one! So we stick with the deprecated `Integer` constructor.
   */

          println(response.body!!.string())
        }
      }

      companion object {
        /**
         * The imgur client ID for OkHttp recipes. If you're using imgur for anything other than running
         * these examples, please request your own client ID! https://api.imgur.com/oauth2
         */
        private val IMGUR_CLIENT_ID = "9199fdef135c122"

// this function must be used by only ListObjects() for objects
// with control characters, this is a specialized extension
// to support AWS S3 compatible behavior.
//
// Do not use this function for anything other than ListObjects()
// variants, please open a github discussion if you wish to use
// this in other places.
func encodeResponseList(response any) []byte {
	var buf bytes.Buffer
	buf.WriteString(xxml.Header)

 * (like 0030..0039).
 *
 * The second element on each line is a mapping type, like `valid` or `mapped`.
 *
 * For lines that contain a mapping target, the next thing is a sequence of hex code points (like
 * 0031 2044 0034).
 *
 * All other data is ignored.
 */
fun BufferedSource.readPlainTextIdnaMappingTable(): SimpleIdnaMappingTable {
  val mappedTo = Buffer()