OptionalassetQuery parameters the player appends to the VAST tag URL. Values may be
$NAME$ macros ($OPTIVIEW_*$ built-ins or customer-registered ones).
OptionaldurationThe maximum duration of the asset in seconds
The identifier of the asset, unique within the break
OptionalinteractionInteraction options
The media type, video or image
OptionalmimeThe mime type of the media
The type of the asset
The VAST tag URL, or an array of URLs with targeting.
VAST asset, played by Google IMA as CSAI. SGAI only, linear formats only (single, double, lshape_ad).