*
     * @param session The Maven session context
     * @param type The type of toolchain to retrieve
     * @return Optional containing the toolchain if found
     * @throws ToolchainManagerException if toolchain retrieval fails
     */
    @Nonnull
    Optional<Toolchain> getToolchainFromBuildContext(@Nonnull Session session, @Nonnull String type)
            throws ToolchainManagerException;

    /**

            // update pager
            BeanUtil.copyBeanToBean(kuromojiList, kuromojiPager, option -> option.include(Constants.PAGER_CONVERSION_RULE));
            kuromojiList.setPageRangeSize(fessConfig.getPagingPageRangeSizeAsInteger());
            kuromojiPager.setPageNumberList(kuromojiList.createPageNumberList());

  /** Puts all the associations from {@code rangeMap} into this range map (optional operation). */
  void putAll(RangeMap<K, ? extends V> rangeMap);

  /** Removes all associations from this range map (optional operation). */
  void clear();

  /**
   * Removes all associations from this range map in the specified range (optional operation).
   *

  }

  // Checks the expected result of shape inference for the given `op`.
  void CheckOutputShapes(
      TFE_Op* op,
      const std::vector<absl::optional<std::vector<int64_t>>>& input_shapes_vec,
      const std::vector<TF_Tensor*>& input_tensors,
      const absl::optional<std::vector<int64_t>>& expected_shape) {
    // Create input_shapes.
    TF_ShapeAndTypeList* input_shapes =

      purge:
          # retainVersions: 0 # (default) delete all versions of the object. This option is the fastest.
          # retainVersions: 5 # keep the latest 5 versions of the object including delete markers.

  notify:
    endpoint: https://notify.endpoint # notification endpoint to receive job completion status
    token: Bearer xxxxx # optional authentication token for the notification endpoint
  
  retry:

     * Returns whether the dependency is optional or mandatory.
     * Unlike {@link DependencyCoordinates}, the obligation of a {@code Dependency} is always present.
     * The value is computed during the dependencies collection phase.
     *
     * @return {@code true} if the dependency is optional, or {@code false} if mandatory
     * @see DependencyCoordinates#getOptional()
     */
    boolean isOptional();

    /**

                    }
                }

                @Nonnull
                @Override
                public Optional<org.apache.maven.api.Toolchain> createDefaultToolchain()
                        throws ToolchainFactoryException {
                    return Optional.ofNullable(v3Factory.createDefaultToolchain())
                            .map(ToolchainManagerFactory.this::getToolchainV4);
                }

     *
     * @see Function
     * @see Optional
     * @see HashMap#computeIfAbsent(Object, Function)
     */
    static UnaryOperator<String> memoize(UnaryOperator<String> callback) {
        Map<String, Optional<String>> cache = new HashMap<>();
        return s -> cache.computeIfAbsent(s, v -> Optional.ofNullable(callback.apply(v)))
                .orElse(null);
    }

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.api.services;

import java.util.List;
import java.util.Optional;

import org.apache.maven.api.Repository;
import org.apache.maven.api.Version;
import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Nonnull;

/**
 *
 * @since 4.0.0

   * implementations.
   */
  SUPPORTS_SET;

  /**
   * A set containing none of the optional features of the {@link Iterator} or {@link ListIterator}
   * interfaces.
   */
  public static final Set<IteratorFeature> UNMODIFIABLE = emptySet();

  /**
   * A set containing all of the optional features of the {@link Iterator} and {@link ListIterator}
   * interfaces.
   */