import { CacheMetrics, CacheStats } from "./types";
export declare const MAX_HISTORY = 9999;
export declare class CacheStatsManager {
    /**
     * Method to store hit statistics
     * @param operation operation identifier
     * @param time time spent generating this hit, usually in milliseconds
     */
    static hit(operation: string, time: number): void;
    /**
     * Method to store miss statistics
     * @param operation operation identifier
     * @param time time spent generating this miss, usually in milliseconds
     */
    static miss(operation: string, time: number): void;
    private static updateHits;
    private static updateMisses;
    static getOperationData(operation: string): CacheStats | undefined;
    static getOperationStats(operation: string, source?: Map<string, CacheStats>): CacheMetrics | undefined;
    static getOperations(): string[];
    /**
     * Returns a printable string with operation information
     * @param operation operation identifier
     * @param source an optional alternative source of data
     * @returns string with operation information if found or empty string
     */
    static operationStatsString(operation: string, source?: Map<string, CacheStats>): string;
}
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