import org.gradle.api.attributes.HasAttributes;

import java.util.Set;

/**
 * Meta-data about a particular type of artifacts.
 *
 * @since 4.0
 */
public interface ArtifactTypeDefinition extends HasAttributes, Named {
    /**
     * The attribute that represents the type of the artifact.
     *
     * @since 7.3
     */

        Set<String> seen = new HashSet<>();
        if (artifactTypeDefinitions != null) {
            for (ArtifactTypeDefinition artifactTypeDefinition : artifactTypeDefinitions) {
                if (seen.add(artifactTypeDefinition.getName())) {
                    ImmutableAttributes attributes = ((AttributeContainerInternal) artifactTypeDefinition.getAttributes()).asImmutable();

        registry.mapAttributesFor(artifactFile).getAttribute(ArtifactTypeDefinition.ARTIFACT_TYPE_ATTRIBUTE) == type

        where:
        artifactFile    | type
        file("foo.jar") | ArtifactTypeDefinition.JAR_TYPE
        file("foo.zip") | ArtifactTypeDefinition.ZIP_TYPE
        file("foo.bar") | "bar"
        file("foo")     | ""
        dir("foo")      | ArtifactTypeDefinition.DIRECTORY_TYPE

     * publication.
     */
    public static final Set<String> UNPUBLISHABLE_VARIANT_ARTIFACTS = ImmutableSet.of(
        ArtifactTypeDefinition.JVM_CLASS_DIRECTORY,
        ArtifactTypeDefinition.JVM_RESOURCES_DIRECTORY,
        ArtifactTypeDefinition.DIRECTORY_TYPE
    );

    private final String scope;
    private final boolean optional;
    private final Configuration resolutionConfiguration;

    private final ImmutableAttributesFactory attributesFactory;

    public DefaultArtifactTypeContainer(Instantiator instantiator, ImmutableAttributesFactory attributesFactory, CollectionCallbackActionDecorator callbackActionDecorator) {
        super(ArtifactTypeDefinition.class, instantiator, callbackActionDecorator);

 */
dependencies {
    registerTransform(InstrumentationMetadataTransform::class) {
        from.attribute(ArtifactTypeDefinition.ARTIFACT_TYPE_ATTRIBUTE, ArtifactTypeDefinition.JVM_CLASS_DIRECTORY)
        to.attribute(ArtifactTypeDefinition.ARTIFACT_TYPE_ATTRIBUTE, INSTRUMENTATION_METADATA)
    }
}

val extension = extensions.create<InstrumentationMetadataExtension>(

import org.gradle.api.artifacts.type.ArtifactTypeDefinition;
import org.gradle.api.attributes.Attribute;

public abstract class ArtifactAttributes {
    /**
     * @deprecated use public {@link ArtifactTypeDefinition#ARTIFACT_TYPE_ATTRIBUTE} instead.
     */
    @Deprecated
    public static final Attribute<String> ARTIFACT_FORMAT = ArtifactTypeDefinition.ARTIFACT_TYPE_ATTRIBUTE;

                        attributes {
                            attribute(ArtifactTypeDefinition.ARTIFACT_TYPE_ATTRIBUTE, "thing")
                        }
                    }
                }
                dependencies {
                    attributesSchema {
                        attribute(ArtifactTypeDefinition.ARTIFACT_TYPE_ATTRIBUTE) {
                            compatibilityRules.add(DirectoryIsOk)

        apiElements.getAttributes().attribute(ArtifactTypeDefinition.ARTIFACT_TYPE_ATTRIBUTE, ArtifactTypeDefinition.DIRECTORY_TYPE);

        AttributeContainer publicationAttributes = immutableAttributesFactory.mutable();
        publicationAttributes.attribute(Usage.USAGE_ATTRIBUTE, apiUsage);
        publicationAttributes.attribute(ArtifactTypeDefinition.ARTIFACT_TYPE_ATTRIBUTE, ArtifactTypeDefinition.ZIP_TYPE);

           viewConfiguration.attributes(attributeContainer -> {
               attributeContainer.attribute(ArtifactTypeDefinition.ARTIFACT_TYPE_ATTRIBUTE, ArtifactTypeDefinition.DIRECTORY_TYPE);
           });
        });
        includePath = componentHeaderDirs.plus(includeDirs.getFiles());
        linkLibraries = nativeLink;