def find_attractiveness(self, username, accuracy=1000,
                            _lower=0, _higher=10000):
        """
        :param username: The username to lookup attractiveness for.
        :param accuracy: The accuracy required to return a result.
        :param _lower: The lower bound of the search.
        :param _higher: The upper bound of the search.
        """
        average = (_higher + _lower)//2
        if _higher - _lower <= accuracy:
            return average

        results = search(self._session,
                         count=9,
                         gentation='everybody',
                         keywords=username,
                         attractiveness_min=average,
                         attractiveness_max=_higher,)
        found_match = False
        if results:
            for profile in results:
                if profile.username.lower() == username:
                    found_match = True
                    break

        if found_match:
            return self.find_attractiveness(username, accuracy,
                                            average, _higher)
        else:
            return self.find_attractiveness(username, accuracy,
                                            _lower, average)
:param username: The username to lookup attractiveness for.
        :param accuracy: The accuracy required to return a result.
        :param _lower: The lower bound of the search.
        :param _higher: The upper bound of the search.