export interface Counter {
    inc(): void;
    add(value: number): void;
}
export interface Gauge {
    set(value: number): void;
    inc(): void;
    dec(): void;
}
export interface Histogram {
    record(value: number): void;
}
export declare class MetricsRegistry {
    private counters;
    private gauges;
    private histograms;
    private buffer;
    constructor(endpoint: string, apiKey: string, serviceName: string);
    counter(name: string, tags?: Record<string, string>): Counter;
    gauge(name: string, tags?: Record<string, string>): Gauge;
    histogram(name: string, tags?: Record<string, string>): Histogram;
    shutdown(): Promise<void>;
    private metricKey;
}
declare class NoopCounter implements Counter {
    inc(): void;
    add(_value: number): void;
}
declare class NoopGauge implements Gauge {
    set(_value: number): void;
    inc(): void;
    dec(): void;
}
declare class NoopHistogram implements Histogram {
    record(_value: number): void;
}
export declare const noopCounter: NoopCounter;
export declare const noopGauge: NoopGauge;
export declare const noopHistogram: NoopHistogram;
export {};
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