*
     * @return the root node of the dependency graph or {@code null} if none
     */
    @Nullable
    Node getRoot();

    /**
     * The ordered list of the flattened dependency nodes.
     *
     * @return the ordered list of the flattened dependency nodes
     */
    @Nonnull
    List<Node> getNodes();

    /**

 * If the type is {@link org.apache.maven.api.Node Node} or
 * {@code List<}{@link org.apache.maven.api.Node Node}{@code >},
 * and {@code pathScope != ""}, the dependencies will be <i>flattened</i>.
 * Else the dependencies will be <i>resolved</i> and {@code pathScope} must be non empty,
 * and the field type can be {@link org.apache.maven.api.Node Node},
 * {@code List<}{@link org.apache.maven.api.Node Node}{@code >},

                session, DependencyResolverRequest.RequestType.FLATTEN, project, scope));
    }

    @Nonnull
    default DependencyResolverResult flatten(@Nonnull DependencyResolverRequest request) {
        if (request.getRequestType() != DependencyResolverRequest.RequestType.FLATTEN) {
            throw new IllegalArgumentException("requestType should be FLATTEN when calling flatten()");
        }
        return resolve(request);
    }

	CompName1 string `gorm:"index:,unique,composite:idx_compname_1,option:NULLS NOT DISTINCT;not null"`
	CompName2 string `gorm:"index:,composite:idx_compname_1"`

	// Composite Index: Flattened structure.
	Data0A string `gorm:"index:,composite:comp_id0"`
	Data0B string `gorm:"index:,composite:comp_id0"`

	// Composite Index: Nested structure.
	Data1A string `gorm:"index:,composite:comp_id1"`
	CompIdxLevel1C

) {
  val commonName: Any?
    get() {
      return tbsCertificate.subject
        .flatten()
        .firstOrNull { it.type == ObjectIdentifiers.COMMON_NAME }
        ?.value
    }

  val organizationalUnitName: Any?
    get() {
      return tbsCertificate.subject
        .flatten()
        .firstOrNull { it.type == ObjectIdentifiers.ORGANIZATIONAL_UNIT_NAME }
        ?.value
    }

    /**
     * Should upgrade plugins known to fail with Maven 4 to their minimum compatible versions.
     * This includes upgrading plugins like maven-exec-plugin, maven-enforcer-plugin,
     * flatten-maven-plugin, and maven-shade-plugin to versions that work with Maven 4.
     *
     * @return an {@link Optional} containing the boolean value {@code true} if specified, or empty
     */
    @Nonnull

 * followed by <dfn>flattening</dfn> and <dfn>resolution</dfn>.
 * The version selection is done for each dependency during the collection phase.
 * The flatten phase keeps only a single version per ({@code groupId}, {@code artifactId}) pair.
 * The resolution phase actually downloads the dependencies (or artifacts) that have been computed.
 *
 * @since 4.0.0
 */
@Experimental