HTTP::OAI::Set - Encapsulates OAI set XML data

$spec = $s->setSpec([$spec])

$name = $s->setName([$name])

These methods return respectively, the setSpec and setName of the OAI Set.

$descs = $s->setDescription([$desc])

Returns and optionally adds the list of set descriptions. Returns a reference to an array of HTTP::OAI::Description (HTTP::OAI::Description) objects.