import type { EmbeddingAdapter, EmbeddingResult } from './types.js';
/** Options for {@link CachedEmbeddingAdapter}. */
export interface CachedEmbeddingOptions {
    /**
     * Cap on cached vectors; the oldest are evicted first. Default 10_000 — a
     * long-lived process embedding user-supplied text would otherwise grow the
     * map without bound, and each entry is a full vector.
     */
    maxEntries?: number;
}
/**
 * In-memory caching wrapper for any EmbeddingAdapter.
 *
 * Caches embeddings by `model:text` key so repeated inputs skip the provider call.
 * Usage reflects what the provider actually charged: zero when every input was
 * served from cache, otherwise the usage of the call made for the cache misses.
 */
export declare class CachedEmbeddingAdapter implements EmbeddingAdapter {
    private inner;
    private cache;
    private readonly maxEntries;
    constructor(inner: EmbeddingAdapter, opts?: CachedEmbeddingOptions);
    embed(input: string | string[], model: string): Promise<EmbeddingResult>;
    /** Store one vector, evicting the oldest entries once the cap is exceeded. */
    private remember;
}
//# sourceMappingURL=cached-embedding.d.ts.map