docs: def create_authors(project_dir=os.curdir):
      """
      Creates the authors file, if not in a package.
  
      Returns:
          None
  
      Raises:
          RuntimeError: If the authors could not be retrieved
      """
      pkg_info_file = os.path.join(project_dir, 'PKG-INFO')
      authors_file = os.path.join(project_dir, 'AUTHORS')
      if os.path.exists(pkg_info_file):
          return
  
      authors = get_authors(project_dir=project_dir)
      with open(authors_file, 'wb') as authors_fd:
          authors_fd.write(
              b'\n'.join(a.encode('utf-8') for a in authors) + b'\n'
          )