assertThrows(NullPointerException.class, () -> cache.getUnchecked(null));
      checkEmpty(cache);
    }
  }

  /* ---------------- Key Set -------------- */

  public void testKeySet_nullToArray() {
    for (LoadingCache<Object, Object> cache : caches()) {
      Set<Object> keys = cache.asMap().keySet();
      assertThrows(NullPointerException.class, () -> keys.toArray((Object[]) null));
      checkEmpty(cache);
    }

      assertThrows(NullPointerException.class, () -> cache.getUnchecked(null));
      checkEmpty(cache);
    }
  }

  /* ---------------- Key Set -------------- */

  public void testKeySet_nullToArray() {
    for (LoadingCache<Object, Object> cache : caches()) {
      Set<Object> keys = cache.asMap().keySet();
      assertThrows(NullPointerException.class, () -> keys.toArray((Object[]) null));
      checkEmpty(cache);
    }

import java.util.Set;

/**
 * Thrown when requirements on a tester method or class conflict with each other.
 *
 * @author George van den Driessche
 */
@GwtCompatible
public class ConflictingRequirementsException extends Exception {
  private Set<Feature<?>> conflicts;
  private Object source;

  public ConflictingRequirementsException(
      String message, Set<Feature<?>> conflicts, Object source) {

import com.google.common.collect.testing.features.TesterAnnotation;
import java.lang.annotation.Inherited;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.util.Set;

/**
 * Optional features of classes derived from {@link Multiset}.
 *
 * @author Louis Wasserman
 */
@SuppressWarnings("rawtypes") // maybe avoidable if we rework the whole package?
@GwtCompatible

   * </ol>
   *
   * @param set the presumed-immutable set
   * @param sampleElement an element of the same type as that contained by {@code set}. {@code set}
   *     may or may not have {@code sampleElement} as a member.
   */
  public static <E extends @Nullable Object> void assertSetIsUnmodifiable(
      Set<E> set, E sampleElement) {
    assertCollectionIsUnmodifiable(set, sampleElement);
  }

  /**

Зверніть увагу, що змінна `item` є одним із елементів у списку `items`.

І все ж редактор знає, що це `str`, і надає підтримку для цього.

#### Tuple and Set (кортеж та набір)

Ви повинні зробити те ж саме, щоб оголосити `tuple` і `set`:

//// tab | Python 3.8 і вище

```Python hl_lines="1  4"
{!> ../../docs_src/python_types/tutorial007.py!}
```

////

//// tab | Python 3.9 і вище

}

func (s *TestSuiteCommon) TestCors(c *check) {
	expectedMap := http.Header{}
	expectedMap.Set("Access-Control-Allow-Credentials", "true")
	expectedMap.Set("Access-Control-Allow-Origin", "http://foobar.com")
	expectedMap["Access-Control-Expose-Headers"] = []string{
		"Date",
		"Etag",
		"Server",
		"Connection",
		"Accept-Ranges",

# Name of the bucket # - name: bucket1 # # Policy to be set on the # # bucket [none|download|upload|public] # policy: none # # Purge if bucket exists already # purge: false # # set versioning for # # bucket [true|false] # versioning: false # # set objectlocking for # # bucket [true|false] NOTE: versioning is enabled by default if you use locking # objectlocking: false # - name: bucket2 # policy: none # purge: false # versioning: true # # set objectlocking for # # bucket [true|false] NOTE: versioning...

# Name of the bucket # - name: bucket1 # # Policy to be set on the # # bucket [none|download|upload|public] # policy: none # # Purge if bucket exists already # purge: false # # set versioning for # # bucket [true|false] # versioning: false # # set objectlocking for # # bucket [true|false] NOTE: versioning is enabled by default if you use locking # objectlocking: false # - name: bucket2 # policy: none # purge: false # versioning: true # # set objectlocking for # # bucket [true|false] NOTE: versioning...

# Name of the bucket # - name: bucket1 # # Policy to be set on the # # bucket [none|download|upload|public] # policy: none # # Purge if bucket exists already # purge: false # # set versioning for # # bucket [true|false] # versioning: false # # set objectlocking for # # bucket [true|false] NOTE: versioning is enabled by default if you use locking # objectlocking: false # - name: bucket2 # policy: none # purge: false # versioning: true # # set objectlocking for # # bucket [true|false] NOTE: versioning...