<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:

def members_data_for_in(self, leaderboard_name, members):
        '''
        Retrieve the optional member data for a given list of members in the named leaderboard.

        @param leaderboard_name [String] Name of the leaderboard.
        @param members [Array] Member names.
        @return Array of strings of optional member data.
        '''
        return self.redis_connection.hmget(
            self._member_data_key(leaderboard_name), members)