sealed class TransformStepSpec(val transformStep: TransformStep) {
    abstract fun recreateDependencies(): TransformUpstreamDependencies

    class NoDependencies(transformStep: TransformStep) : TransformStepSpec(transformStep) {
        override fun recreateDependencies(): TransformUpstreamDependencies {
            return DefaultTransformUpstreamDependenciesResolver.NO_DEPENDENCIES
        }
    }

    protected final ResolvableArtifact artifact;
    private final ComponentVariantIdentifier targetComponentVariant;
    private final AttributeContainer sourceAttributes;
    protected final TransformUpstreamDependencies upstreamDependencies;
    private final long transformStepNodeId;

    private PlannedTransformStepIdentity cachedIdentity;

    protected TransformStepNode(
        long transformStepNodeId,

        @Override
        public Optional<FileCollection> getFiles() {
            return Optional.empty();
        }
    };
    public static final TransformUpstreamDependencies NO_DEPENDENCIES = new TransformUpstreamDependencies() {

        @Nullable
        @Override
        public ConfigurationIdentity getConfigurationIdentity() {
            return null;
        }

        @Override

import org.gradle.api.internal.artifacts.transform.TransformDependencies
import org.gradle.api.internal.artifacts.transform.TransformStep
import org.gradle.api.internal.artifacts.transform.TransformUpstreamDependencies
import org.gradle.api.internal.artifacts.transform.TransformUpstreamDependenciesResolver
import org.gradle.api.internal.artifacts.transform.TransformUpstreamDependenciesResolverFactory