Class Search.Filter.Base Constant contenttypes constant array(string) Search.Filter.Base.contenttypes Description The MIME content types this object can filter. Constant fields optional constant array(string) Search.Filter.Base.fields Description The different fields this object can extract from the media. The list can contain any of the following values. "body" "title" "keywords" "description" "robots" "headline" "modified" "author" "summary"