private static class MockNamedNodeMap implements NamedNodeMap {
        private final Map<String, Node> items = new HashMap<>();

        public void setNamedItem(String name, Node node) {
            items.put(name, node);
        }

        @Override
        public Node getNamedItem(String name) {
            return items.get(name);
        }

        @Override
        public Node setNamedItem(Node arg) {

                        </h1>
                    </div>
                    <div class="col-sm-6">
                        <ol class="breadcrumb float-sm-right">
                            <li class="breadcrumb-item active"><la:link href="/admin/searchlist/search?q=${f:u(q)}">
                                <la:message key="labels.search_list_configuration"/>
                            </la:link></li>
                        </ol>

	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
}

func filterStorageClass(ctx context.Context, s string) string {
	// Veeam 14.0 and later clients are not compatible with custom storage classes.

	// The usual case is caught by Push, below, but be safe.
	for nesting := 0; nesting < 100; {
		tok := in.Stack.Next()
		switch tok {
		case '#':
			if !in.beginningOfLine {
				in.Error("'#' must be first item on line")
			}
			in.beginningOfLine = in.hash()
			in.text = "#"
			return '#'

		case scanner.Ident:
			// Is it a macro name?
			name := in.Stack.Text()
			macro := in.macros[name]

It allows a counting semaphore to be modeled by a buffered channel:
the number of items in the channel corresponds to the number of active uses,
the capacity of the channel corresponds to the maximum number of simultaneous uses,
sending an item acquires the semaphore, and receiving an item releases
the semaphore.
This is a common idiom for limiting concurrency.
</p>

<p>

Isso ocorre por que, por padrão, o FastAPI irá verificar cada item dentro do dicionário e garantir que ele seja serializável para JSON, utilizando o mesmo[Codificador Compatível com JSON](../tutorial/encoder.md){.internal-link target=_blank} explicado no tutorial. Isso permite que você retorne **objetos abstratos**, como modelos do banco de dados, por exemplo.

        urlFilter.addInclude(".*\\$price=\\d+.*");
        urlFilter.addExclude(".*\\[\\].*");

        assertTrue(urlFilter.match("https://example.com/?page=1"));
        assertTrue(urlFilter.match("https://shop.com/item?$price=100"));
        assertFalse(urlFilter.match("https://example.com/array[]"));
    }

    /**
     * Test case sensitivity in patterns
     */
    public void test_caseSensitivity() {

* busca el subpaquete `routers` (el directorio en `app/routers/`)...
* y de él, importa el submódulo `items` (el archivo en `app/routers/items.py`) y `users` (el archivo en `app/routers/users.py`)...

El módulo `items` tendrá una variable `router` (`items.router`). Este es el mismo que creamos en el archivo `app/routers/items.py`, es un objeto `APIRouter`.

Y luego hacemos lo mismo para el módulo `users`.

///

`response_model` принимает те же типы, которые можно указать для какого-либо поля в модели Pydantic. Таким образом, это может быть как одиночная модель Pydantic, так и `список (list)` моделей Pydantic. Например, `List[Item]`.

FastAPI будет использовать значение `response_model` для того, чтобы автоматически генерировать документацию, производить валидацию и т.п. А также для **конвертации и фильтрации выходных данных** в объявленный тип.

		return err
	}
	failed := false
	for res := range results {
		if res.Err != nil {
			failed = true
			batchLogIf(ctx, res.Err)
			break
		}
		result := res.Item
		sseKMS := crypto.S3KMS.IsEncrypted(result.UserDefined)
		sseS3 := crypto.S3.IsEncrypted(result.UserDefined)
		if !sseKMS && !sseS3 { // neither sse-s3 nor sse-kms disallowed
			continue
		}
		wk.Take()