For example, with an ID of `42`, this would render:

```html
<a href="/items/42">
```

## Templates and static files { #templates-and-static-files }

You can also use `url_for()` inside of the template, and use it, for example, with the `StaticFiles` you mounted with the `name="static"`.

```jinja hl_lines="4"
{!../../docs_src/templates/templates/item.html!}
```

    assert response.json() == {"p": ["hello", "world"]}


# =====================================================================================
# Alias and validation alias


@app.post(
    "/optional-list-alias-and-validation-alias",
    operation_id="optional_list_alias_and_validation_alias",
)
def read_optional_list_alias_and_validation_alias(
    p: Annotated[
        list[str] | None,

   * to reduce cache contention on most processors. Padding is
   * overkill for most Atomics because they are usually irregularly
   * scattered in memory and thus don't interfere much with each
   * other. But Atomic objects residing in arrays will tend to be
   * placed adjacent to each other, and so will most often share
   * cache lines (with a huge negative performance impact) without
   * this precaution.
   *

 * and {@link State#TERMINATED} states are terminal states, once a service enters either of these
 * states it cannot ever leave them.
 *
 * <p>Implementors of this interface are strongly encouraged to extend one of the abstract classes
 * in this package which implement this interface and make the threading and state management
 * easier.
 *
 * @author Jesse Wilson

Each event is a small text block with "fields" like `data`, `event`, `id`, and `retry`, separated by blank lines.

It looks like this:

```
data: {"name": "Portal Gun", "price": 999.99}

data: {"name": "Plumbus", "price": 32.99}

```

SSE is commonly used for AI chat streaming, live notifications, logs and observability, and other cases where the server pushes updates to the client.

/// tip

 * <p>While this class is public, we consider it to be *internal* and not part of our published API.
 * It is public so we can access it reflectively across class loaders in secure environments.
 *
 * <p>This class can't depend on other Guava code. If we were to load this class in the same class
 * loader as the rest of Guava, this thread would keep an indirect strong reference to the class

 * Graphically, this is the specification of a straight line on a plane. The transformation can be
 * expressed as {@code y = m * x + c} for finite {@code m} and {@code c}, unless it is a vertical
 * transformation in which case {@code x} has a constant value for all {@code y}. In the
 * non-vertical case, {@code m} is the slope of the transformation (and a horizontal transformation
 * has zero slope).

# Repository Management

Here's a short description of how the FastAPI repository is managed and maintained.

## Owner

I, [@tiangolo](https://github.com/tiangolo), am the creator and owner of the FastAPI repository. 🤓

I normally give the final review to each PR before merging them. I make the final decisions on the project, I'm the [<abbr title="Benevolent Dictator For Life">BDFL</abbr>](https://en.wikipedia.org/wiki/Benevolent_dictator_for_life). 😅

- Aggregated discovery supports both v2beta1 and v2 types and feature is promoted to GA ([#122882](https://github.com/kubernetes/kubernetes/pull/122882), [@Jefftree](https://github.com/Jefftree)) [SIG API Machinery and Testing]

    @Test
    void testAccept_FileHasMoreAttributes_Matching() throws SmbException {
        // Given a filter for READONLY
        dosFileFilter = new DosFileFilter("*", SmbFile.ATTR_READONLY);
        // and a file that is READONLY, HIDDEN, and SYSTEM
        when(mockFile.getAttributes()).thenReturn(SmbFile.ATTR_READONLY | SmbFile.ATTR_HIDDEN | SmbFile.ATTR_SYSTEM);

        // When calling accept