code: def _parse_authors(html_chunk):
      
      authors_tags = html_chunk.match(
          ["div", {"class": "polozka_autor"}],
          "a"
      )
  
      authors = []
      for author_tag in authors_tags:
          # get name
          name = author_tag.getContent().strip()
  
          # skip tags without name
          if not name:
              continue
  
          # get url - if not found, set it to None
          url = author_tag.params.get("href", None)
          if url:
              url = normalize_url(BASE_URL, url)
  
          authors.append(
              Author(name, url)
          )
  
      return authors
docs: Parse authors of the book.
  
      Args:
          html_chunk (obj): HTMLElement containing slice of the page with details.
  
      Returns:
          list: List of :class:`structures.Author` objects. Blank if no author \
                found.