':return: æç« äœè
:rtype: Author'

@property
@check_soup('_author')
def author(self):

    from .author import Author
    url = self.soup['author']['profileUrl']
    name = self.soup['author']['name']
    motto = self.soup['author']['bio']
    template = self.soup['author']['avatar']['template']
    photo_id = self.soup['author']['avatar']['id']
    photo_url = template.format(id=photo_id, size='r')
    return Author(url, name, motto, photo_url=photo_url, session=self._session)
