Log set

        >>> client = StatsdClient()
        >>> client.set('example.set', "set")
        >>> client.set(('example.set61', 'example.set67'), "2701")

def set(self, stats, value):
        """
        Log set

        >>> client = StatsdClient()
        >>> client.set('example.set', "set")
        >>> client.set(('example.set61', 'example.set67'), "2701")
        """
        self.update_stats(stats, value, self.SC_SET)