/**
 * Lemma Cloud — Tenant Cache Manager
 *
 * Each tenant gets an isolated ChromaDB collection + usage stats.
 * Handles semantic search via Ollama embeddings.
 */
import { TenantStats } from './types';
export declare class TenantCache {
    private tenantId;
    private chromaUrl;
    private ollamaUrl;
    private model;
    private collectionName;
    private chromaClient;
    private chromaCollection;
    private embeddingCache;
    private _pipeline;
    private stats;
    constructor(tenantId: string, chromaUrl: string, ollamaUrl: string, model: string);
    initialize(): Promise<void>;
    query(input: string, threshold: number): Promise<{
        hit: boolean;
        data?: any;
        similarity?: number;
    }>;
    store(key: string, input: string, data: any, ttl: number, maxEntries?: number): Promise<void>;
    getStats(): Promise<TenantStats>;
    private embed;
}
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