/**
 * Internal record stored inside the in-memory storage map. One per key.
 * See `THIRDPARTY-LICENSES.md` for upstream attribution.
 */
export declare class StorageRecord {
    value: number;
    expiresAt: number | null;
    timeoutId: ReturnType<typeof setTimeout> | null;
    constructor(value: number, expiresAt: number | null, timeoutId?: ReturnType<typeof setTimeout> | null);
}
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