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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def heading_title(self):
 """ Makes the Article Title for the Heading. Metadata element, content derived from FrontMatter """

        art_title = self.article.root.xpath('./front/article-meta/title-group/article-title')[0]
        article_title = deepcopy(art_title)
        article_title.tag = 'h1'
        article_title.attrib['id'] = 'title'
        article_title.attrib['class'] = 'article-title'
        return article_title