{[]string{"", ""}, ""},
		{[]string{"a", "b"}, ""},
		{[]string{"a", "a"}, "a"},
		{[]string{"a/", "a/"}, "a/"},
		{[]string{"abcd/", ""}, ""},
		{[]string{"abcd/foo/", "abcd/bar/"}, "abcd/"},
		{[]string{"abcd/foo/bar/", "abcd/foo/bar/zoo"}, "abcd/foo/bar/"},
	}

	for i, test := range testCases {
		foundPrefix := lcp(test.prefixes, true)
		if foundPrefix != test.commonPrefix {

                                                "price": 35.4,
                                                "tax": 3.2,
                                            },
                                            {"name": "Bar", "price": "35.4"},
                                            {
                                                "name": "Baz",
                                                "price": "thirty five point four",

                                                "price": 35.4,
                                                "tax": 3.2,
                                            },
                                            {"name": "Bar", "price": "35.4"},
                                            {
                                                "name": "Baz",
                                                "price": "thirty five point four",

    data = {"a": 2, "b": "foo"}
    response = client.post("/a/compute", json=data)
    assert response.status_code == 200, response.text
    data = response.json()


def test_post_a_invalid():
    data = {"a": "bar", "b": "foo"}
    response = client.post("/a/compute", json=data)
    assert response.status_code == 422, response.text


def test_post_b():
    data = {"a": 2, "b": "foo"}

Então, com uma URL assim:

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

você receberá os múltiplos *parâmetros de consulta* `q` com os valores (`foo` e `bar`) em uma lista (`list`) Python dentro da *função de operação de rota*, no *parâmetro da função* `q`.

Assim, a resposta para essa URL seria:

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

/// tip | "Dica"

    @app.post("/")
    def foo(foo: Union[str, List[int]]):
        return foo

    client = TestClient(app)

    response = client.post("/", json="bar")
    assert response.status_code == 200, response.text
    assert response.json() == "bar"

    response2 = client.post("/", json=[1, 2])
    assert response2.status_code == 200, response2.text
    assert response2.json() == [1, 2]

		formats: FormatUSTAR | FormatPAX | FormatGNU,
	}, {
		header:  &Header{Xattrs: map[string]string{"foo": "bar"}},
		paxHdrs: map[string]string{paxSchilyXattr + "foo": "bar"},
		formats: FormatPAX,
	}, {
		header:  &Header{Xattrs: map[string]string{"foo": "bar"}, Format: FormatGNU},
		paxHdrs: map[string]string{paxSchilyXattr + "foo": "bar"},
		formats: FormatUnknown,
	}, {
		header:  &Header{Xattrs: map[string]string{"用戶名": "\x00hello"}},

hello world dir/bar foo readonly important...

{!> ../../docs_src/header_params/tutorial003_py310.py!}
```

////

🚥 👆 🔗 ⏮️ 👈 *➡ 🛠️* 📨 2️⃣ 🇺🇸🔍 🎚 💖:

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

📨 🔜 💖:

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

## 🌃

📣 🎚 ⏮️ `Header`, ⚙️ 🎏 ⚠ ⚓ `Query`, `Path` & `Cookie`.

    return client


@needs_py39
@pytest.mark.parametrize(
    "url,data",
    [
        ("/items/foo", {"name": "Foo", "price": 50.2}),
        (
            "/items/bar",
            {"name": "Bar", "description": "The bartenders", "price": 62, "tax": 20.2},
        ),
        (
            "/items/baz",
            {
                "name": "Baz",
                "description": None,