def remove_member_from(self, leaderboard_name, member):
        '''
        Remove the optional member data for a given member in the named leaderboard.

        @param leaderboard_name [String] Name of the leaderboard.
        @param member [String] Member name.
        '''
        pipeline = self.redis_connection.pipeline()
        pipeline.zrem(leaderboard_name, member)
        pipeline.hdel(self._member_data_key(leaderboard_name), member)
        pipeline.execute()
Remove the optional member data for a given member in the named leaderboard.

        @param leaderboard_name [String] Name of the leaderboard.
        @param member [String] Member name.