@CanIgnoreReturnValue
  PrimitiveSink putChar(char c);

  /**
   * Puts each 16-bit code unit from the {@link CharSequence} into this sink.
   *
   * <p><b>Warning:</b> This method will produce different output than most other languages do when
   * running on the equivalent input. For cross-language compatibility, use {@link #putString},
   * usually with a charset of UTF-8. For other use cases, use {@code putUnencodedChars}.
   *

<a href="https://github.com/mpdavis/python-jose" class="external-link" target="_blank">python-jose</a> erfordert zusätzlich ein kryptografisches Backend.

Hier verwenden wir das empfohlene: <a href="https://cryptography.io/" class="external-link" target="_blank">pyca/cryptography</a>.

/// tip | "Tipp"

Dieses Tutorial verwendete zuvor <a href="https://pyjwt.readthedocs.io/" class="external-link" target="_blank">PyJWT</a>.

///

Um **die Grundlagen von HTTPS** aus Sicht des Benutzers zu erlernen, schauen Sie sich <a href="https://howhttps.works/" class="external-link" target="_blank">https://howhttps.works/</a> an.

Aus **Sicht des Entwicklers** sollten Sie beim Nachdenken über HTTPS Folgendes beachten:

import com.google.common.collect.testing.features.MapFeature;
import java.util.concurrent.ConcurrentMap;
import org.junit.Ignore;

/**
 * Tester for {@link ConcurrentMap#remove}. Can't be invoked directly; please see {@link
 * com.google.common.collect.testing.ConcurrentMapTestSuiteBuilder}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible

import java.io.InvalidObjectException;
import java.io.ObjectInputStream;
import java.io.Serializable;
import java.util.EnumMap;
import javax.annotation.CheckForNull;

/**
 * Implementation of {@link ImmutableMap} backed by a non-empty {@link java.util.EnumMap}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible(serializable = true, emulated = true)
@SuppressWarnings("serial") // we're overriding default serialization

import java.util.concurrent.atomic.AtomicReference;
import junit.framework.TestCase;

/**
 * Supplemental tests for {@link Monitor}.
 *
 * <p>This test class contains various test cases that don't fit into the test case generation in
 * {@link GeneratedMonitorTest}.
 *
 * @author Justin T. Sampson
 */
public class SupplementalMonitorTest extends TestCase {

import com.google.common.collect.Maps;
import java.util.Map;
import java.util.Set;
import javax.annotation.CheckForNull;

/**
 * This class provides a skeletal implementation of {@link ValueGraph}. It is recommended to extend
 * this class rather than implement {@link ValueGraph} directly.
 *
 * <p>The methods implemented in this class should not be overridden unless the subclass admits a
 * more efficient implementation.
 *

import java.util.ConcurrentModificationException;
import java.util.Iterator;
import java.util.function.Predicate;
import org.junit.Ignore;

/**
 * A generic JUnit test which tests {@link Collection#removeIf}. Can't be invoked directly; please
 * see {@link com.google.common.collect.testing.CollectionTestSuiteBuilder}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible

import com.google.common.collect.testing.features.MapFeature;
import java.util.concurrent.ConcurrentMap;
import org.junit.Ignore;

/**
 * Tester for {@link ConcurrentMap#remove}. Can't be invoked directly; please see {@link
 * com.google.common.collect.testing.ConcurrentMapTestSuiteBuilder}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible

import static junit.framework.Assert.fail;

import com.google.common.annotations.GwtCompatible;
import com.google.common.escape.UnicodeEscaper;

/**
 * Testing utilities for {@link UrlEscapers} and {@link LegacyUrlEscapersTest}.
 *
 * @author David Beaumont
 */
@GwtCompatible
final class UrlEscaperTesting {
  /**
   * Helper to assert common expected behaviour of uri escapers. You should call