if (!disjoint(newFeatures, earlierFeatures)) {
      throw new ConflictingRequirementsException(
          String.format(
              Locale.ROOT,
              "Annotation requires to be %s features that earlier "
                  + "annotations required to be %s.",
              newRequirement,
              earlierRequirement),
          intersection(newFeatures, earlierFeatures),
          source);
    }
  }

```

Donc, lorsque vous avez besoin de déclarer une valeur comme requise tout en utilisant `Query`, vous pouvez simplement ne pas déclarer de valeur par défaut :

{* ../../docs_src/query_params_str_validations/tutorial006_an_py310.py hl[9] *}

### Requis, peut valoir `None` { #required-can-be-none }

Some requests will have a cached response. When this cached response isn’t fresh, OkHttp can do a _conditional GET_ to download an updated response if it’s newer than what’s cached. This requires headers like `If-Modified-Since` and `If-None-Match` to be added.

## Rewriting Responses

    proxy: Proxy,
  ) {
  }

  /**
   * Invoked just prior to initiating a TLS connection.
   *
   * This method is invoked if the following conditions are met:
   *
   *  * The [Call.request] requires TLS.
   *
   *  * No existing connection from the [ConnectionPool] can be reused.
   *
   * This can be invoked more than 1 time for a single [Call]. For example, if the response to the

    if (enableValidation) {
      compileKotlinTask.source(file("src/main/java9"))
    }

    // Ignore warnings about using 'requires transitive' on automatic modules.
    // not needed when compiling with recent JDKs, e.g. 17
    options.compilerArgs.add("-Xlint:-requires-transitive-automatic")

    // Patch the compileKotlinJvm output classes into the compilation so exporting packages works correctly.

 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

public class BiMapRemoveTester<K, V> extends AbstractBiMapTester<K, V> {
  @MapFeature.Require(SUPPORTS_REMOVE)
  @CollectionSize.Require(absent = ZERO)
  public void testRemoveKeyRemovesFromInverse() {
    getMap().remove(k0());
    expectMissing(e0());
  }

  @MapFeature.Require(SUPPORTS_REMOVE)
  @CollectionSize.Require(absent = ZERO)
  public void testRemoveKeyFromKeySetRemovesFromInverse() {

      if (containedClass.getSimpleName().equals("Require")) {
        if (containedClass.isAnnotation()) {
          assertGoodTesterAnnotation(asAnnotation(containedClass));
        } else {
          fail(
              rootLocaleFormat(
                  "Feature enum %s contains a class named "
                      + "'Require' but it is not an annotation.",
                  featureEnumClass));
        }

   * be declared as a {@code List}.
   *
   * <p>Note also that serialization is not in general required to return an object that is
   * {@linkplain Object#equals equal} to the original, nor is it required to return even an object
   * of the same class. For example, if sublists of {@code MyList} instances were serializable,

    if (c == '%' || c == '+' && plusIsSpace) {
      // Slow path: the character at i requires decoding!
      val out = Buffer()
      out.writeUtf8(this, pos, i)
      out.writePercentDecoded(this, pos = i, limit = limit, plusIsSpace = plusIsSpace)
      return out.readUtf8()
    }
  }

  // Fast path: no characters in [pos..limit) required decoding.
  return substring(pos, limit)
}