task.source(extension.getDocumentedSource().filter(f -> f.getName().endsWith(".java")));

            task.setClasspath(extension.getClasspath());

            // TODO: This should be in Javadoc task
            DirectoryProperty generatedJavadocDirectory = objects.directoryProperty();

                parent.setNChildren(1);
                parent.addChild(0, node);
            }

            parent = node;
        }
        return tree;
    }

    public void setClasspath(List<ArtifactMetadata> classpath) {
        this.classpath = classpath;
    }

    public ArtifactScopeEnum getScope() {
        return scope;
    }

    public void setScope(ArtifactScopeEnum scope) {

        assertNotNull(res, "null classpath container after runtime transform");
        assertNotNull(res.getClasspath(), "null classpath after runtime transform");
        assertEquals(4, res.getClasspath().size(), "runtime classpath should have 4 entries");

        ArtifactMetadata md = res.getClasspath().get(3);
        assertEquals("1.1", md.getVersion(), "runtime artifact version should be 1.1");
    }

            spec.getSourceRoots().from(runtimeExtensions.flatMap(GradleKotlinDslRuntimeGeneratedSources::getGeneratedSources));
            spec.getClasspath().from(extension.getClasspath());
            spec.getClasspath().from(runtimeExtensions.flatMap(GradleKotlinDslRuntimeGeneratedSources::getGeneratedClasses));
            spec.getIncludes().from(extension.getSourceRoot().file("kotlin/Module.md"));

            return new MetadataGraph(getTree(), true, true);
        }
        return null;
    }
    // ----------------------------------------------------------------------------
    public ClasspathContainer getClasspath(ArtifactScopeEnum scope)
            throws MetadataGraphTransformationException, MetadataResolutionException {
        if (classpathTransformation == null) {
            return null;
        }

     */
    public abstract ConfigurableFileCollection getKotlinDslSource();

    /**
     * The runtime classpath of the source code to be documented.
     */
    public abstract ConfigurableFileCollection getClasspath();

    /**
     * A working directory to be used to stage documentation as its generated.
     * All of the sections of the documentation have working directories off of this one.
     */