import type { RouterHealthRecord, RouterHealthStore } from "./types.js";
export interface LocalWriteFailureOverlay {
    expirations: Array<{
        deadline: number;
        key: string;
    }>;
    inactive: Map<string, true>;
    records: Map<string, RouterHealthRecord>;
}
export declare function probeExpiryBefore(left: {
    deadline: number;
    key: string;
}, right: {
    deadline: number;
    key: string;
}): boolean;
export declare function pushProbeExpiry(heap: Array<{
    deadline: number;
    key: string;
}>, expiry: {
    deadline: number;
    key: string;
}): void;
export declare function popProbeExpiry(heap: Array<{
    deadline: number;
    key: string;
}>): {
    deadline: number;
    key: string;
} | undefined;
export declare const localWriteFailuresByStore: WeakMap<RouterHealthStore, LocalWriteFailureOverlay>;