This object specifies whether 'Streamer Is Cache' is enabled on
this streamer. If 'Streamer Is Cache' is enabled, the Streamer
can be used as a possible cache-fill source by a Streamer in a
different Stream Group. All Stream Groups that have at least one
Streamer with 'Streamer is Cache' enabled are displayed on the
'Stream to Cache Map' page, where the Stream Group can be
selected
as a possible cache-fill source and given a preference. Only the
Streamers with 'Streamer Is Cache' enabled are used as possible
cache-fill sources. The protocol used for cache-fill responses
from Streamers is always CCP.
'true' - 'Streamer Is Cache' is enabled
'false' - 'Streamer Is Cache' is disabled