render

type RenderData struct {
	HeartbeatID string         // Heartbeat identifier.
	Title       string         // Heartbeat title.
	Status      string         // Status identifier.
	Subject     string         // Rendered subject/title.
	Payload     string         // Raw last payload.
	Timestamp   time.Time      // Event time.
	Interval    time.Duration  // Expected heartbeat interval.
	LateAfter   time.Duration  // Late window duration.
	Receiver    string         // Receiver name.
	Vars        map[string]any // Receiver variables.
	Since       time.Duration  // Time since last heartbeat.
}