//! Trigger event — may carry context attributes but does not mutate state. See spec §3.2.
use crateAttrSet;
use crateKindRef;
use crateLocId;
/// Spec §3.2: a trigger event may carry attributes (e.g., a VAST request
/// with context) but does not mutate state. Attributes are available to the
/// scorer via `LocationView::trigger_attrs`.