/**
 * @octomil/browser — Model cache manager
 *
 * Caches downloaded ONNX model binaries using the Cache API (preferred)
 * or IndexedDB as a fallback.  Cache entries are keyed by model URL so
 * that different model versions naturally invalidate stale entries.
 */
import type { CacheInfo, CacheStrategy } from "./types.js";
export interface ModelCache {
    get(key: string): Promise<ArrayBuffer | null>;
    put(key: string, data: ArrayBuffer): Promise<void>;
    has(key: string): Promise<boolean>;
    remove(key: string): Promise<void>;
    info(key: string): Promise<CacheInfo>;
}
/**
 * Create a {@link ModelCache} instance for the given strategy.
 *
 * Falls back gracefully:
 *  - `"cache-api"` — uses Cache API if available, else IndexedDB, else no-op.
 *  - `"indexeddb"` — uses IndexedDB if available, else no-op.
 *  - `"none"` — always no-op.
 */
export declare function createModelCache(strategy: CacheStrategy): ModelCache;
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