* @param <O> The type of the transformed object
     * @param <I> The type of the object to be transformed
     * @return A transformer that simply type casts the input to the given output type.
     */
    public static <O, I> Transformer<O, I> cast(Class<O> outputType) {
        return new CastingTransformer<O, I>(outputType);
    }

    //just returns the original object
    public static <T> Transformer<T, T> noOpTransformer() {

                    to.attribute(artifactType, 'size')
                }
            }

            def transformed = configurations.compile.incoming.artifactView { attributes.attribute(artifactType, 'size') }.files

            task resolve(type: ShowFilesTask) {
                inFiles.from(transformed)
            }

            abstract class MakeSize implements TransformAction<None> {
                @InputArtifact

        this.modelRegistry = modelRegistry;
        this.ruleFactory = new ClosureBackedRuleFactory(relativeFilePathResolver);
    }

    /**
     * Invoked by transformed DSL configuration rules
     */
    public void configure(String modelPathString, Closure<?> closure) {
        ModelPath modelPath = ModelPath.path(modelPathString);

                        println "Transformed artifact: \${it.file.name} (\${it.id.componentId}), location: \${it.file.absolutePath}"
                    }
                }
            }
        """
        expect:
        execute(buildA, "resolve")
        assertTaskExecuted(":buildB", ":jar")
        assertTaskExecuted(":buildC", ":jar")

        outputContains("Transformed artifact: buildB-1.0.jar.xform (project :buildB)")

 */
public abstract class InternalTransformers {

    /**
     * Creates a transformer that simply type casts the input to the given output type.
     *
     * @param outputType The type to cast the input to
     * @param <O> The type of the transformed object
     * @param <I> The type of the object to be transformed
     * @return A transformer that simply type casts the input to the given output type.
     */

                return dependency.withRequested(newSelector);
        });
        return this.withDependencies(transformed);
    }

    private IvyModuleResolveMetadata withDependencies(List<IvyDependencyDescriptor> transformed) {
        return new DefaultIvyModuleResolveMetadata(this, transformed);
    }

    @Override
    public ImmutableList<IvyDependencyDescriptor> getDependencies() {

     *
     * @param artifactTransformer A transformer applied to all artifacts and sub-variant artifacts.
     *
     * @return A copy of this metadata, with the given transformer applied to all artifacts.
     */

import org.apache.maven.model.building.ModelBuildingException;
import org.apache.maven.project.MavenProject;
import org.eclipse.aether.RepositorySystemSession;

/**
 * Transformed artifact is derived with some transformation from source artifact.
 *
 * @since TBD
 */
class TransformedArtifact extends DefaultArtifact {

    private static final int SHA1_BUFFER_SIZE = 8192;

                void beforeTransformExecution(Describable transformer, Describable subject) {
                    println "Before transformer \${transformer.displayName} on \${subject.displayName}"
                }

                @Override
                void afterTransformExecution(Describable transformer, Describable subject) {
                    println "After transformer \${transformer.displayName} on \${subject.displayName}"

        then:
        outputContains("files: [test-lib.jar, transformed-a1.jar, transformed-b2.jar, test-1.0.jar]")
        outputContains("components: [test-lib.jar, project :a, project :b, org:test:1.0]")
        outputContains("variants: [{artifactType=jar}, {artifactType=jar, buildType=debug, flavor=one, usage=transformed}, {artifactType=jar, usage=transformed}, {artifactType=jar, org.gradle.status=release}]")
    }