public File getSourceDir() {
        return sourceDir;
    }

    public void setSourceDir(File sourceDir) {
        this.sourceDir = sourceDir;
    }

    @OutputDirectory
    public File getHeaderDir() {
        return headerDir;
    }

    public void setHeaderDir(File headerDir) {
        this.headerDir = headerDir;
    }

            abstract class UnzipTransform implements TransformAction<Parameters> {
                interface Parameters extends TransformParameters {
                    @InputDirectory
                    DirectoryProperty getHeaderDir()
                }

                void transform(TransformOutputs outputs) {
                    def unzipped = outputs.dir("unzipped")