/**
     * Source of samples that can be inserted into the user manual
     *
     */
    public abstract DirectoryProperty getSamples();

    /**
     * Working directory for staging directory for intermediate user manual files
     */
    public abstract DirectoryProperty getStagingRoot();

    public abstract DirectoryProperty getStagedDocumentation();

    /**
     * Additional resources to include in the final docs

    /**
     * Resources to include with the generated documentation.
     */
    public abstract ConfigurableFileCollection getResources();

    /**
     * Location to stage the intermediate documentation. This is like a working directory.
     */
    public abstract DirectoryProperty getStagingRoot();

    public abstract RegularFileProperty getGeneratedMetaDataFile();

    /**

            task.attributes(attributes);
        });

        // Avoid overlapping outputs by copying exactly what we want from other intermediate tasks
        TaskProvider<Sync> userguide = tasks.register("userguide", Sync.class, task -> {
            task.setGroup("documentation");
            task.setDescription("Stages rendered user manual documentation.");

            // > A trailing `"/**"` matches everything inside.

            // #21: everything inside but it should not include the current folder
            : '\\/.+'
    ],

    // normal intermediate wildcards
    [
        // Never replace escaped '*'
        // ignore rule '\*' will match the path '*'

        // 'abc.*/' -> go
        // 'abc.*'  -> skip this rule,