code: def profile_pic_url(self) -> str:
          
          if self._context.is_logged_in:
              try:
                  return self._iphone_struct['hd_profile_pic_url_info']['url']
              except (InstaloaderException, KeyError) as err:
                  self._context.error('{} Unable to fetch high quality profile pic.'.format(err))
                  return self._metadata("profile_pic_url_hd")
          else:
              return self._metadata("profile_pic_url_hd")
docs: Return URL of profile picture. If logged in, the HD version is returned, otherwise a lower-quality version.
  
          .. versionadded:: 4.0.3
  
          .. versionchanged:: 4.2.1
             Require being logged in for HD version (as required by Instagram).