assertUnescaped(e, '@');

    // Don't use plus for spaces
    assertEscaping(e, "%20", ' ');

    assertEquals("safe%20with%20spaces", e.escape("safe with spaces"));
    assertEquals("foo@bar.com", e.escape("foo@bar.com"));
  }

  private UrlEscaperTesting() {}

hello world dir/bar foo readonly important...

			query:      `SELECT synonyms from s3object s WHERE 'bar' IN s.synonyms[*] `,
			wantResult: `{"synonyms":["foo","bar","whatever"]}`,
		},
		{
			name:       "donatello-1",
			query:      `SELECT * from s3object s WHERE 'bar' in s.synonyms`,
			wantResult: `{"id":0,"title":"Test Record","desc":"Some text","synonyms":["foo","bar","whatever"]}`,
		},
		{
			name:       "donatello-2",

<?xml version="1.0" encoding="UTF-8"?>
<foo>
	<bar/>

            project.getModel().addDependency(dependency);
        }

        @Override
        public void afterSessionStart(MavenSession session) {
            session.getUserProperties().setProperty("injected", "bar");
        }
    }

    public static class InjectReactorDependency extends AbstractMavenLifecycleParticipant {
        @Override
        public void afterProjectsRead(MavenSession session) {

    response = client.put(
        "/items/123",
        json={
            "name": "Foo",
            "description": "A very nice Item",
            "price": 35.4,
            "tax": 3.2,
            "tags": ["foo", "bar", "foo"],
            "image": {"url": "http://example.com/image.png", "name": "example image"},
        },
    )
    assert response.status_code == 200, response.text
    assert response.json() == {
        "item_id": 123,

from fastapi import FastAPI

app = FastAPI()

fake_items_db = [{"item_name": "Foo"}, {"item_name": "Bar"}, {"item_name": "Baz"}]


@app.get("/items/")
async def read_item(skip: int = 0, limit: int = 10):

from fastapi import FastAPI

app = FastAPI()


@app.get("/items/")
async def read_items(q: str | None = None):
    results = {"items": [{"item_id": "Foo"}, {"item_id": "Bar"}]}
    if q:
        results.update({"q": q})

{* ../../docs_src/header_params/tutorial003_an_py310.py hl[9] *}

Si te comunicas con esa *path operation* enviando dos headers HTTP como:

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

El response sería como:

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

## Recapitulación { #recap }

Declara headers con `Header`, usando el mismo patrón común que `Query`, `Path` y `Cookie`.

    response = client.get("/items/foo")
    assert response.status_code == 200, response.text
    assert response.json() == {"item": "The Foo Wrestlers"}


def test_get_item_not_found():
    response = client.get("/items/bar")
    assert response.status_code == 404, response.text
    assert response.headers.get("x-error") == "Some custom header"
    assert response.json() == {"detail": "Item not found"}


def test_get_starlette_item():