* <li>Meta-data about the plugins, in the form of an XML file.</li>
 * <li>{@code sourceFile} - A main docbook template file containing the introductory material and a list of classes to document.</li>
 * <li>{@code classDocbookDir} - A directory that should contain docbook template for each class referenced in main docbook template.</li>
 * </ul>
 *
 * Produces the following:

import org.gradle.api.tasks.TaskProvider;
import gradlebuild.docs.dsl.docbook.AssembleDslDocTask;
import gradlebuild.docs.dsl.source.ExtractDslMetaDataTask;

/**
 * Generates DSL reference material using Docbook and some homegrown class parsing.
 *
 * TODO: It would be nice to replace the Docbook portion of this with Asciidoc so that it could be
 * generated in the same way as the user manual with cross-links between them.

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