for metricName, mv := range m.values {
		desc := m.descriptors[metricName]
		promDesc := desc.toPromDesc(namePrefix, extraLabels)
		for _, v := range mv {
			// labelValues is in the same order as the variable labels in the
			// descriptor.
			labelValues := make([]string, 0, len(v.Labels))
			for _, k := range desc.VariableLabels {
				labelValues = append(labelValues, v.Labels[k])
			}

Wenn Sie zwei unabhängige FastAPI-Anwendungen mit deren eigenen unabhängigen OpenAPI und deren eigenen Dokumentationsoberflächen benötigen, können Sie eine Hauptanwendung haben und dann eine (oder mehrere) Unteranwendung(en) „mounten“.

## Eine **FastAPI**-Anwendung mounten { #mounting-a-fastapi-application }

Deklarieren Sie dann die Header-Parameter mit derselben Struktur wie bei `Path`, `Query` und `Cookie`.

Sie können den Defaultwert sowie alle zusätzlichen Validierungs- oder Annotationsparameter definieren:

{* ../../docs_src/header_params/tutorial001_an_py310.py hl[9] *}

/// note | Technische Details

import okio.ByteString;

/**
 * Runs a MockWebServer on localhost and uses it as the backend to receive an OAuth session.
 *
 * <p>Clients should call {@link #start}, {@link #newAuthorizeUrl} and {@link #close} in that order.
 * Clients may request multiple sessions.
 */
public final class OAuthSessionFactory extends Dispatcher implements Closeable {
  private final SecureRandom secureRandom = new SecureRandom();

                                    "type": "string",
                                    "default": "created_at",
                                    "title": "Order By",
                                },
                            },
                            {
                                "name": "tags",
                                "in": "query",

                    }
                    return map;
                  }

                  @Override
                  public Iterable<Entry<String, String>> order(
                      List<Entry<String, String>> insertionOrder) {
                    sort(
                        insertionOrder,
                        Helpers.<String, String>entryComparator(NullsBeforeTwo.INSTANCE));

import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import java.io.Serializable;
import java.util.Iterator;

/** An ordering that uses the reverse of the natural order of the values. */
@GwtCompatible
final class ReverseNaturalOrdering extends Ordering<Comparable<?>> implements Serializable {
  static final ReverseNaturalOrdering INSTANCE = new ReverseNaturalOrdering();

  @Override

                    }
                    return map;
                  }

                  @Override
                  public Iterable<Entry<String, String>> order(
                      List<Entry<String, String>> insertionOrder) {
                    sort(
                        insertionOrder,
                        Helpers.<String, String>entryComparator(NullsBeforeTwo.INSTANCE));

import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import org.jspecify.annotations.Nullable;

/**
 * A collection that supports order-independent equality, like {@link Set}, but may have duplicate
 * elements. A multiset is also sometimes called a <i>bag</i>.
 *
 * <p>Elements of a multiset that are equal to one another are referred to as <i>occurrences</i> of

 *
 * <p>This class serializes execution of <i>submitted</i> tasks but not any <i>listeners</i> of
 * those tasks.
 *
 * <p>Submitted tasks have a happens-before order as defined in the Java Language Specification.
 * Tasks execute with the same happens-before order that the function calls to {@link #submit} and
 * {@link #submitAsync} that submitted those tasks had.
 *