export interface MetricDataPoint {
    name: string;
    tags: Record<string, string>;
    value: number;
    timestamp: number;
    type: 'counter' | 'gauge' | 'histogram';
}
export declare class MetricsBuffer {
    private data;
    private exporter;
    private flushTimer?;
    private readonly maxSize;
    private readonly flushInterval;
    private isShuttingDown;
    constructor(endpoint: string, apiKey: string, serviceName: string);
    start(): void;
    add(dataPoint: MetricDataPoint): void;
    private scheduleFlush;
    private flush;
    shutdown(): Promise<void>;
}
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