/**
 * In-Memory Metrics Implementations
 * @module analysis/metrics.implementations
 */
import type { Counter, Histogram, Gauge, MetricLabels } from '../telemetry/metrics.js';
import type { HistogramStats } from './metrics.types.js';
/**
 * In-memory counter implementation
 */
export declare class InMemoryCounter implements Counter {
    private values;
    add(value: number, labels?: MetricLabels): void;
    increment(labels?: MetricLabels): void;
    getValues(): Map<string, number>;
    getTotal(): number;
    reset(): void;
}
/**
 * In-memory histogram implementation
 */
export declare class InMemoryHistogram implements Histogram {
    private values;
    private labeledValues;
    record(value: number, labels?: MetricLabels): void;
    getStats(): HistogramStats;
    getStatsByLabel(labels: MetricLabels): HistogramStats;
    reset(): void;
}
/**
 * In-memory gauge implementation
 */
export declare class InMemoryGauge implements Gauge {
    private values;
    set(value: number, labels?: MetricLabels): void;
    getValue(labels?: MetricLabels): number;
    getAllValues(): Map<string, number>;
    reset(): void;
}
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