Retrieve all similar strings from the DB.

        :param s: str, string to check against the DB.
        :return: list of all similar strings.
        :rtype: list

def retrieve(self, s):
        """Retrieve all similar strings from the DB.

        :param s: str, string to check against the DB.
        :return: list of all similar strings.
        :rtype: list

        """
        all_sim = []
        use_max_n = self.max_n is not None
        for comparison_string in self._get_comparison_strings(s):
            if self.comparison_func(s, comparison_string) >= self.cutoff:
                all_sim.append(comparison_string)
                if use_max_n and len(all_sim) >= self.max_n:
                    return all_sim
        return all_sim