To visit all headers, use the `Headers` class which supports access by index.

=== ":material-language-kotlin: Kotlin"
    ```kotlin
      private val client = OkHttpClient()

      fun run() {
        val request = Request.Builder()

不過，在這兩種情況下，**FastAPI** [仍然很快](index.md#_11){.internal-link target=_blank}至少與你之前的框架相當（或者更快）。

### 依賴項(Dependencies)

同樣適用於[依賴項](tutorial/dependencies/index.md){.internal-link target=_blank}。如果依賴項是一個標準的 `def` 函式，而不是 `async def`，那麼它在外部的執行緒池被運行。

### 子依賴項

在这两种情况下，与你之前的框架相比，**FastAPI** 可能[仍然很快](index.md#_11){.internal-link target=_blank}。

### 依赖

这同样适用于[依赖](tutorial/dependencies/index.md){.internal-link target=_blank}。如果一个依赖是标准的 `def` 函数而不是 `async def`，它将被运行在外部线程池中。

### 子依赖

!important;\n  position: sticky !important;\n}\n\n.fixed-top {\n  position: fixed;\n  top: 0;\n  right: 0;\n  left: 0;\n  z-index: 1030;\n}\n\n.fixed-bottom {\n  position: fixed;\n  right: 0;\n  bottom: 0;\n  left: 0;\n  z-index: 1030;\n}\n\n@supports ((position: -webkit-sticky) or (position: sticky)) {\n  .sticky-top {\n    position: -webkit-sticky;\n    position: sticky;\n    top: 0;\n    z-index: 1020;\n  }\n}\n\n.sr-only {\n  position: absolute;\n  width: 1px;\n  height: 1px;\n  padding: 0;\n  margin: -1px;\n...

    EqualsTester tester = new EqualsTester();
    NullPointerException e =
        assertThrows(NullPointerException.class, () -> tester.addEqualityGroup(1, null, 3));
    assertErrorMessage(e, "at index 1");
  }

  public void testSymmetryBroken() {
    EqualsTester tester =
        new EqualsTester().addEqualityGroup(named("foo").addPeers("bar"), named("bar"));
    try {
      tester.testEquals();

        LaRequestUtil.getOptionalRequest().map(HttpServletRequest::getContextPath).filter(s -> s.length() > 1).ifPresent(s -> sb.append(s));
        sb.append(input);
        if (input.indexOf('?') == -1) {
            try {
                final Long value = resourceHashCache.get(input);
                if (value.longValue() > 0) {
                    sb.append("?t=").append(value.toString());

        assertEquals("0A0B0C", Hexdump.toHexString(data3, 0, 6)); // 6 chars = 3 bytes

        // Test with offset - NOTE: srcIndex is ignored due to bug, it always starts from index 0
        byte[] data4 = { 0x00, 0x11, 0x22, 0x33, 0x44 };
        assertEquals("00", Hexdump.toHexString(data4, 1, 2)); // Bug: ignores srcIndex, reads from 0

		participle.CaseInsensitive("Keyword"),
		participle.CaseInsensitive("Timeword"),
	)

	j := JSONPathElement{}
	cases := []string{
		// Key
		"['name']", ".name", `."name"`,

		// Index
		"[2]", "[0]", "[100]",

		// Object wildcard
		".*",

		// array wildcard
		"[*]",
	}
	for i, tc := range cases {
		err := p.ParseString(tc, &j)
		if err != nil {
			t.Fatalf("%d: %v", i, err)

                public String toString() {
                    return name;
                }

                @Override
                public char charAt(final int index) {
                    return name.charAt(index);
                }

                @Override
                public int length() {
                    return name.length();
                }

                @Override

    }

    @Override
    public int size() {
      return ImmutableMultimap.this.size();
    }

    @Override
    Multiset.Entry<K> getEntry(int index) {
      Map.Entry<K, ? extends Collection<V>> entry = map.entrySet().asList().get(index);
      return Multisets.immutableEntry(entry.getKey(), entry.getValue().size());
    }

    @Override
    boolean isPartialView() {
      return true;
    }