Esto te da mucha flexibilidad. Puedes devolver cualquier tipo de datos, sobrescribir cualquier declaración o validación de datos, etc.

## Usar el `jsonable_encoder` en una `Response` { #using-the-jsonable-encoder-in-a-response }

Como **FastAPI** no realiza cambios en una `Response` que devuelves, tienes que asegurarte de que sus contenidos estén listos para ello.

<div class="termy">

```console
$ pip install jinja2

---> 100%
```

</div>

## Usando `Jinja2Templates` { #using-jinja2templates }

* Importa `Jinja2Templates`.
* Crea un objeto `templates` que puedas reutilizar más tarde.
* Declara un parámetro `Request` en la *path operation* que devolverá una plantilla.

 * appropriate primitive specialization such as {@code IntPredicate}) instead whenever possible.
 * Otherwise, at least reduce <i>explicit</i> dependencies on this type by using lambda expressions
 * or method references instead of classes, leaving your code easier to migrate in the future.
 *
 * <p>To use a reference of this type (say, named {@code guavaPredicate}) in a context where {@code

   *
   * @param runnable the runnable task
   * @param result the result to return on successful completion. If you don't need a particular
   *     result, consider using constructions of the form: {@code ListenableFuture<?> f =
   *     ListenableFutureTask.create(runnable, null)}
   * @since 10.0
   */
  public static <V extends @Nullable Object> ListenableFutureTask<V> create(

  static final double INTEGER_MANY_VALUES_MAX = 555555.0;
  static final double INTEGER_MANY_VALUES_MIN = -4444.0;

  // Integers which will overflow if summed (using integer arithmetic):
  static final int[] LARGE_INTEGER_VALUES = {Integer.MAX_VALUE, Integer.MAX_VALUE / 2};
  static final double LARGE_INTEGER_VALUES_MEAN =
      BigInteger.valueOf(Integer.MAX_VALUE)

   *
   * @param values a series of values
   * @since 33.4.0 (but since 28.2 in the JRE flavor)
   */
  @IgnoreJRERequirement // Users will use this only if they're already using streams.
  public void addAll(DoubleStream values) {
    addAll(values.collect(StatsAccumulator::new, StatsAccumulator::add, StatsAccumulator::addAll));
  }

  /**

    for (int i = 0; i < numInsertions * 2; i += 2) {
      assertTrue(bf.mightContain(Integer.toString(i)));
    }

    // Now we check for known false positives using a set of known false positives.
    // (These are all of the false positives under 900.)
    ImmutableSet<Integer> falsePositives =
        ImmutableSet.of(

  /**
   * For <a href="https://tools.ietf.org/html/rfc7515">JWS or JWE objects using the Compact
   * Serialization</a>.
   *
   * @since 27.1
   */
  public static final MediaType JOSE = createConstant(APPLICATION_TYPE, "jose");

  /**
   * For <a href="https://tools.ietf.org/html/rfc7515">JWS or JWE objects using the JSON
   * Serialization</a>.
   *
   * @since 27.1
   */

import java.util.Map;

import org.codelibs.fess.opensearch.config.allcommon.EsAbstractEntity;
import org.codelibs.fess.opensearch.config.bsentity.dbmeta.CrawlingInfoDbm;

/**
 * ${table.comment}
 * @author ESFlute (using FreeGen)
 */
public class BsCrawlingInfo extends EsAbstractEntity {

    // ===================================================================================

import java.util.Map;

import org.codelibs.fess.opensearch.config.allcommon.EsAbstractEntity;
import org.codelibs.fess.opensearch.config.bsentity.dbmeta.CrawlingInfoParamDbm;

/**
 * ${table.comment}
 * @author ESFlute (using FreeGen)
 */
public class BsCrawlingInfoParam extends EsAbstractEntity {

    // ===================================================================================