Tendrá una *path operation* que recibirá un cuerpo `Invoice`, y un parámetro de query `callback_url` que contendrá la URL para el callback.

Esta parte es bastante normal, probablemente ya estés familiarizado con la mayor parte del código:

{* ../../docs_src/openapi_callbacks/tutorial001_py310.py hl[7:11,34:51] *}

/// tip | Consejo

Benchmarks independentes da TechEmpower mostram as aplicações **FastAPI** rodando com Uvicorn como <a href="https://www.techempower.com/benchmarks/#section=test&runid=7464e520-0dc2-473d-bd34-dbdfd7e85911&hw=ph&test=query&l=zijzen-7" class="external-link" target="_blank">um dos frameworks Python mais rápidos disponíveis</a>, somente atrás dos próprios Starlette e Uvicorn (utilizados internamente pelo FastAPI).

//			return tx.Model(&User{}).Where(&User{Name: "foo", Age: 20})
//				.Limit(10).Offset(5)
//				.Order("name ASC")
//				.First(&User{})
//	})
func (db *DB) ToSQL(queryFn func(tx *DB) *DB) string {
	tx := queryFn(db.Session(&Session{DryRun: true, SkipDefaultTransaction: true}).getInstance())
	stmt := tx.Statement

	return db.Dialector.Explain(stmt.SQL.String(), stmt.Vars...)

    private int currentPageNumber;

    /** Type of log being displayed (default: search). */
    public String logType = LOG_TYPE_SEARCH;

    /** Query ID filter for search logs. */
    public String queryId;

    /** User session ID filter for search logs. */
    public String userSessionId;

    /** Time range filter for search logs (format: "yyyy-MM-dd HH:mm - yyyy-MM-dd HH:mm"). */

## Não Separe Schemas { #do-not-separate-schemas }

Agora, há alguns casos em que você pode querer ter o **mesmo esquema para entrada e saída**.

Provavelmente, o principal caso de uso para isso é se você já tem algum código de cliente/SDK gerado automaticamente e não quer atualizar todo o código de cliente/SDK gerado ainda, você provavelmente vai querer fazer isso em algum momento, mas talvez não agora.

labels.notificationTo=Notification To
labels.num=Num
labels.pn=Page Number
labels.protocolScheme=Scheme
labels.purgeByBots=Purge Bots
labels.logLevel=Log Level
labels.purgeSearchLogDay=Purge Search Log
labels.query=Query
labels.queryId=Query ID
labels.rt=rt
labels.searchLog=Search Log
labels.sort=Sort
labels.start=Start
labels.loginRequired=Login Required
labels.loginLink=Show Login Link
labels.threadName=Thread Name
labels.url=URL

labels.notificationTo=Notification To
labels.num=Num
labels.pn=Page Number
labels.protocolScheme=Scheme
labels.purgeByBots=Purge Bots
labels.logLevel=Log Level
labels.purgeSearchLogDay=Purge Search Log
labels.query=Query
labels.queryId=Query ID
labels.rt=rt
labels.searchLog=Search Log
labels.sort=Sort
labels.start=Start
labels.loginRequired=Login Required
labels.loginLink=Show Login Link
labels.threadName=Thread Name
labels.url=URL

					</div>
					<fieldset>
						<legend><la:message key="labels.search" /></legend>
						<div class="clearfix">
							<div class="mx-auto col-10 col-sm-8 col-md-8 col-lg-6">
								<la:text styleClass="query form-control"
									property="q" size="50" maxlength="1000" styleId="contentQuery"
									autocomplete="off" />
							</div>
						</div>
						<c:if test="${!empty popularWords}">
							<div class="clearfix">

    String QUERY_MAX_LENGTH = "query.max.length";

    /** The key of the configuration. e.g. 10000 */
    String QUERY_TIMEOUT = "query.timeout";

    /** The key of the configuration. e.g. true */
    String QUERY_TIMEOUT_LOGGING = "query.timeout.logging";

    /** The key of the configuration. e.g. 10000 */
    String QUERY_TRACK_TOTAL_HITS = "query.track.total.hits";

    response = client.get("/query/int?query=42")
    assert response.status_code == 200
    assert response.json() == "foo bar 42"


def test_query_int_query_42_5():
    response = client.get("/query/int?query=42.5")
    assert response.status_code == 422
    assert response.json() == {
        "detail": [
            {
                "type": "int_parsing",
                "loc": ["query", "query"],