def members_data_for_in(self, leaderboard_name, members):
return self.redis_connection.hmget(<EOL>self._member_data_key(leaderboard_name), members)<EOL>
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.