Если вы взаимодействуете с этой *операцией пути*, отправляя два HTTP-заголовка, таких как:

```
X-Token: foo
X-Token: bar
```

Ответ был бы таким:

```JSON
{
    "X-Token values": [
        "bar",
        "foo"
    ]
}
```

## Резюме

Объявляйте заголовки с помощью `Header`, используя тот же общий шаблон, как при `Query`, `Path` и `Cookie`.

⤴️, ⏮️ 📛 💖:

```
http://localhost:8000/items/?q=foo&q=bar
```

👆 🔜 📨 💗 `q` *🔢 🔢'* 💲 (`foo` & `bar`) 🐍 `list` 🔘 👆 *➡ 🛠️ 🔢*, *🔢 🔢* `q`.

, 📨 👈 📛 🔜:

```JSON
{
  "q": [
    "foo",
    "bar"
  ]
}
```

/// tip

📣 🔢 🔢 ⏮️ 🆎 `list`, 💖 🖼 🔛, 👆 💪 🎯 ⚙️ `Query`, ⏪ ⚫️ 🔜 🔬 📨 💪.

///

   * present in the public suffix list.
   */
  @Test fun domainIsPublicSuffix() {
    val ascii = "https://foo1.foo.bar.elb.amazonaws.com".toHttpUrl()
    assertThat(parse(ascii, "a=b; domain=foo.bar.elb.amazonaws.com")).isNotNull()
    assertThat(parse(ascii, "a=b; domain=bar.elb.amazonaws.com")).isNull()
    assertThat(parse(ascii, "a=b; domain=com")).isNull()
    val unicode = "https://長.長.長崎.jp".toHttpUrl()

        values = "http://www.foo.com/\nhttp://www.bar.com/";
        assertTrue(UriTypeValidator.check(protocols, values));

        protocols = new String[] { "http:" };
        values = "http://www.foo.com/ \r\nhttp://www.bar.com/";
        assertTrue(UriTypeValidator.check(protocols, values));

        protocols = new String[] { "http:" };
        values = "http://www.foo.com/\nhttp://www.bar.com/\n http://www.baz.com/";

    assertEquals(control("bar", 2), entry("bar", 2));
    assertFalse(control("foo", 1).equals(entry("foo", 2)));
    assertFalse(foo1.equals(control("bar", 1)));
    assertFalse(foo1.equals(new Object()));
    assertFalse(foo1.equals(null));
  }

  public void testEqualsNull() {
    assertEquals(control(NK, 1), entry(NK, 1));
    assertEquals(control("bar", NV), entry("bar", NV));

Wenn Sie mit einer *Pfadoperation* kommunizieren, die zwei HTTP-Header sendet, wie:

```
X-Token: foo
X-Token: bar
```

Dann wäre die Response:

```JSON
{
    "X-Token values": [
        "bar",
        "foo"
    ]
}
```

## Zusammenfassung

Deklarieren Sie Header mittels `Header`, auf die gleiche Weise wie bei `Query`, `Path` und `Cookie`.

    builder.putAll("foo", Arrays.asList(1, 2, 3));
    builder.putAll("bar", Arrays.asList(4, 5));
    builder.putAll("foo", Arrays.asList(6, 7));
    Multimap<String, Integer> multimap = builder.build();
    assertEquals(ImmutableSet.of(1, 2, 3, 6, 7), multimap.get("foo"));
    assertEquals(ImmutableSet.of(4, 5), multimap.get("bar"));
    assertEquals(7, multimap.size());
  }

    assertEquals("bar", getOnlyElement(iterable, "bar"));
  }

  public void testGetOnlyElement_withDefault_empty_null() {
    Iterable<String> iterable = emptyList();
    assertNull(Iterables.<@Nullable String>getOnlyElement(iterable, null));
  }

  public void testGetOnlyElement_withDefault_multiple() {
    Iterable<String> iterable = asList("foo", "bar");

    @Override
    public SampleElements<Entry<String, Integer>> samples() {
      return new SampleElements<>(
          immutableEntry("bar", 1),
          immutableEntry("bar", 2),
          immutableEntry("foo", 3),
          immutableEntry("bar", 3),
          immutableEntry("cat", 2));
    }

    @Override
    public Collection<Entry<String, Integer>> create(Object... elements) {

    publicSuffixList.ensureLoaded()

    // Break apart the domain into UTF-8 labels, i.e. foo.bar.com turns into [foo, bar, com].
    val domainLabelsUtf8Bytes = Array(domainLabels.size) { i -> domainLabels[i].encodeUtf8() }

    // Start by looking for exact matches. We start at the leftmost label. For example, foo.bar.com
    // will look like: [foo, bar, com], [bar, com], [com]. The longest matching rule wins.
    var exactMatch: String? = null