import type { EntropyValueObservation } from "./types.js";
export declare const OBSERVATION_POOL_VERSION: 1;
export declare const POOL_TRACKED_VALUES = 16;
export declare const POOL_TRACKED_SESSIONS = 16;
export declare const POOL_BAKED_DIGESTS = 512;
export interface EntropyPoolValueCount {
    value: string | number | boolean;
    count: number;
}
export interface EntropyObservationPoolEntry {
    ref: string;
    key: string;
    values: EntropyPoolValueCount[];
    total: number;
}
export interface EntropyPoolTrackedSession {
    file: string;
    digest: string;
    counts: Record<string, number>;
}
export interface EntropyObservationPoolFile {
    version: typeof OBSERVATION_POOL_VERSION;
    entries: EntropyObservationPoolEntry[];
    tracked: EntropyPoolTrackedSession[];
    baked: string[];
}
export interface EntropyObservationWindow {
    file: string;
    observations: readonly EntropyValueObservation[];
}
export interface MergedObservationPool {
    file: EntropyObservationPoolFile;
    mergedSessions: number;
    skippedSessions: number;
}
export declare const observationIdentity: (observation: EntropyValueObservation) => string;
export declare const observationWindowDigest: (observations: readonly EntropyValueObservation[]) => string;
export declare const mergeObservationWindow: (pool: EntropyObservationPoolFile | undefined, windows: readonly EntropyObservationWindow[]) => MergedObservationPool;
export declare const mergeObservationWindowAsync: (pool: EntropyObservationPoolFile | undefined, windows: readonly EntropyObservationWindow[]) => Promise<MergedObservationPool>;
export declare const poolToValueObservations: (pool: EntropyObservationPoolFile | undefined) => EntropyValueObservation[];
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