keys ->
                            path.create(transform(keys, key -> immutableEntry(key, new Object()))),
                        keys ->
                            path.create(transform(keys, key -> immutableEntry(new Object(), key))),
                        keys -> path.create(transform(keys, key -> immutableEntry(key, key)))))
            .collect(toImmutableList()),

  SortedMap<K, V> create(Object... elements);

  /**
   * Returns an entry with a key less than the keys of the {@link #samples()} and less than the key
   * of {@link #belowSamplesGreater()}.
   */
  Entry<K, V> belowSamplesLesser();

  /**
   * Returns an entry with a key less than the keys of the {@link #samples()} but greater than the
   * key of {@link #belowSamplesLesser()}.
   */
  Entry<K, V> belowSamplesGreater();

  /**

   */
  @CanIgnoreReturnValue // TODO(b/27479612): consider removing this?
  V getUnchecked(K key);

  /**
   * Returns a map of the values associated with {@code keys}, creating or retrieving those values
   * if necessary. The returned map contains entries that were already cached, combined with newly
   * loaded entries; it will never contain null keys or values.
   *

          .addEqualityGroup(ImmutableSet.of())
          .testEquals();
      assertThat(keys).hasSize(WARMUP_SIZE);
      for (int i = WARMUP_MIN; i < WARMUP_MAX; i++) {
        Object key = warmed.get(i - WARMUP_MIN).getKey();
        assertThat(keys.contains(key)).isTrue();
        assertThat(keys.remove(key)).isTrue();
        assertThat(keys.remove(key)).isFalse();

        });
        req.param("key1", "value1").param("key2", "value2");

        // ## Act ##
        try (CurlResponse response = req.execute()) {
            // ## Assert ##
            String urlStr = capturedUrl.get().toString();
            assertTrue("URL should contain ?key1=value1: " + urlStr, urlStr.contains("?key1=value1"));

   *     multimap already contained the key-value pair and doesn't allow duplicates
   */
  @CanIgnoreReturnValue
  boolean put(@ParametricNullness K key, @ParametricNullness V value);

  /**
   * Removes a single key-value pair with the key {@code key} and the value {@code value} from this
   * multimap, if such exists. If multiple key-value pairs in the multimap fit this description,
   * which one is removed is unspecified.
   *

     *
     * @param key the base Kerberos key
     * @param constant the key derivation constant
     * @return the derived key bytes
     * @throws GeneralSecurityException if cryptographic operations fail
     */
    public static byte[] deriveKeyAES(KerberosKey key, byte[] constant) throws GeneralSecurityException {
        byte[] keybytes = key.getEncoded();

    }

    @SuppressWarnings("unchecked")
    final Object legacyReadResolve() {
      K[] keys = (K[]) this.keys;
      V[] values = (V[]) this.values;

      Builder<K, V> builder = makeBuilder(keys.length);

      for (int i = 0; i < keys.length; i++) {
        builder.put(keys[i], values[i]);
      }
      return builder.buildOrThrow();
    }

    /**

          map.put(element, element);
        }
        return map;
      }
    },
    UnmodHM {
      @Override
      Map<Element, Element> create(Collection<Element> keys) {
        return unmodifiableMap(Hash.create(keys));
      }
    },
    SyncHM {
      @Override
      Map<Element, Element> create(Collection<Element> keys) {
        return Collections.synchronizedMap(Hash.create(keys));
      }
    },

    int[] entries = requireEntries();
    @Nullable Object[] keys = requireKeys();
    @Nullable Object[] values = requireValues();
    int srcIndex = size() - 1;
    if (dstIndex < srcIndex) {
      // move last entry to deleted spot
      Object key = keys[srcIndex];
      keys[dstIndex] = key;
      values[dstIndex] = values[srcIndex];
      keys[srcIndex] = null;
      values[srcIndex] = null;