/**
 * Headline family. The main drawing is the KPI card.
 *
 * Call the dial only when a health score already sits beside other measures.
 * Call the loss indicator only when one metric already has a minimum, a
 * maximum, and operating thresholds. A plain number, or several metrics,
 * stays the KPI card.
 */
export declare const HEADLINE_CHARTS: readonly ["kpi-widget", "status-gauge-widget", "loss-indicator"];
export type HeadlineChart = (typeof HEADLINE_CHARTS)[number];
export declare function isHeadlineChart(id: string): id is HeadlineChart;
/** Which headline drawing the rows support. Gauge is checked before the loss scale. */
export declare function headlineChart(payload: unknown): HeadlineChart;