* 👥 Update FastAPI People. PR [#2454](https://github.com/tiangolo/fastapi/pull/2454) by [@github-actions[bot]](https://github.com/apps/github-actions).

### Translations

* 🌐 Add docs lang selector widget. PR [#2542](https://github.com/tiangolo/fastapi/pull/2542) by [@tiangolo](https://github.com/tiangolo).

    prefer the JDK’s precedence order.) This change may cause your HTTP calls to negotiate a
    different cipher suite than before! OkHttp's defaults cipher suites are selected for good
    security and performance.

 *  New: `ConnectionListener` publishes events for connects, disconnects, and use of pooled
    connections.

class="nav-item" role="presentation"><a href="#" class="btn-iframe-close" data-widget="iframe-close" data-type="only-this"><i class="fas fa-times"></i></a><a class="nav-link" data-toggle="row" id="'+s+'" href="#'+l+'" role="tab" aria-controls="'+l+'" aria-selected="false">'+e+"</a></li>";n.default(me).append(unescape(escape(r)));var d='<div class="tab-pane fade" id="'+l+'" role="tabpanel" aria-labelledby="'+s+'"><iframe src="'+t+'"></iframe></div>';if(n.default(be).append(unescape(escape(d))),i)if(this._c...

   * @deprecated For Android users, see the <a
   *     href="https://developer.android.com/training/data-storage" target="_blank">Data and File
   *     Storage overview</a> to select an appropriate temporary directory (perhaps {@code
   *     context.getCacheDir()}), and create your own directory under that. (For example, you might

}

func ptr[T any](a T) *T {
	return &a
}

// sleepContext sleeps for d duration or until ctx is done.
func sleepContext(ctx context.Context, d time.Duration) error {
	select {
	case <-ctx.Done():
		return ctx.Err()
	case <-time.After(d):
	}
	return nil
}

// helper type to return either item or error.
type itemOrErr[V any] struct {
	Item V
	Err  error

t1.Equal(&t2) & t3.Equal(&t4) } // Constant-time operations // Select sets v to a if cond == 1 and to b if cond == 0. func (v *projCached) Select(a, b *projCached, cond int) *projCached { v.YplusX.Select(&a.YplusX, &b.YplusX, cond) v.YminusX.Select(&a.YminusX, &b.YminusX, cond) v.Z.Select(&a.Z, &b.Z, cond) v.T2d.Select(&a.T2d, &b.T2d, cond) return v } // Select sets v to a if cond == 1 and to b if cond == 0. func (v *affineCached) Select(a, b *affineCached, cond int) *affineCached { v.YplusX.Select(&a.YplusX,...

[Moshi](https://github.com/square/moshi) is a handy API for converting between JSON and Java objects. Here we're using it to decode a JSON response from a GitHub API.

Note that `ResponseBody.charStream()` uses the `Content-Type` response header to select which charset to use when decoding the response body. It defaults to `UTF-8` if no charset is specified.

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

</p>

<pre>
var limit = make(chan int, 3)

func main() {
	for _, w := range work {
		go func(w func()) {
			limit &lt;- 1
			w()
			&lt;-limit
		}(w)
	}
	select{}
}
</pre>

<h3 id="locks">Locks</h3>

<p>
The <code>sync</code> package implements two lock data types,
<code>sync.Mutex</code> and <code>sync.RWMutex</code>.
</p>

<p class="rule">

   * once after loading completes). Much internal cache management is performed at the segment
   * granularity. For example, access queues and write queues are kept per segment when they are
   * required by the selected eviction algorithm. As such, when writing unit tests it is not
   * uncommon to specify {@code concurrencyLevel(1)} in order to achieve more deterministic eviction
   * behavior.
   *

<a href="https://9p.io/sys/doc/compiler.html">this description</a>)
needs no assembler pass in the usual pipeline.
Instead, the compiler operates on a kind of semi-abstract instruction set,
and instruction selection occurs partly after code generation.
The assembler works on the semi-abstract form, so
when you see an instruction like <code>MOV</code>
what the toolchain actually generates for that operation might