import type { SpotlightMemoryEntry } from "@inupedia/spotlight-protocol";
export interface RedisExactMemoryStoreOptions {
    projectId: string;
    tenantId?: string;
    lruMax?: number;
}
/** L0 exact cache in Redis (SETEX + sorted index for LRU cap). */
export declare class RedisExactMemoryStore {
    readonly projectId: string;
    private readonly tenantId?;
    private readonly lruMax;
    constructor(options: RedisExactMemoryStoreOptions);
    static isAvailable(): boolean;
    private ttlSec;
    getExact(cacheKey: string): Promise<SpotlightMemoryEntry | null>;
    hasExact(cacheKey: string): Promise<boolean>;
    putExact(cacheKey: string, entry: SpotlightMemoryEntry): Promise<void>;
    touch(entryId: string): Promise<void>;
    listEntries(limit?: number): Promise<SpotlightMemoryEntry[]>;
    deleteEntry(entryId: string): Promise<boolean>;
    deleteAll(projectId: string): Promise<number>;
    count(): Promise<number>;
}
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