export interface Alert {
    description: string;
    startsAt: string;
    endsAt: string;
    severity: 'warning' | 'critical' | 'unavailable';
    key: string;
}
export declare const useHealthBarData: (alerts: Alert[], startTimestamp: number, endTimestamp: number, id: string) => {
    chartData: {
        range: number[];
    }[];
    alertsMap: Record<string, Alert>;
    alertKeys: {
        warningKeys: string[];
        criticalKeys: string[];
        unavailableKeys: string[];
    };
};
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