A special photo list used to list reference photos.
In general, only a single photo is given as a reference for similarity search, but per the implementation of this class, multiple photos could be used as well.
XML Example
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<referenceMediaList>
<media>
<UID>959cd699-3bc6-4d25-8723-35862e5c57d9</UID>
<serviceId>6</serviceId>
<mediaType>PHOTO</mediaType>
<userId>4375607936430586469</userId>
<url>http://fe.example.org/rest/carc/r?uid=959cd699-3bc6-4d25-8723-35862e5c57d9&service_id=6</url>
</media>
</referenceMediaList>