/**
 * Generic KV-shaped loader. The interface (`get(key, type) -> ArrayBuffer`)
 * matches Cloudflare Workers KV exactly and is close enough to fit Vercel
 * Edge Config / Upstash Redis / DynamoDB DAX after a tiny shim.
 *
 * Resources are stored under a configurable prefix so multiple datasets can
 * share the same namespace without collisions.
 */
import type { ResourceLoader } from '../../types';
/** Minimal KV surface — Workers KV implements this natively. */
export interface KvNamespace {
    get(key: string, type: 'arrayBuffer'): Promise<ArrayBuffer | null>;
}
export interface KvResourceLoaderOptions {
    namespace: KvNamespace;
    /**
     * Prepended to every key (e.g. `phone-validator:geocodes/en/41.bson`).
     * Defaults to `phone-validator:`.
     */
    prefix?: string;
}
export declare class KvResourceLoader implements ResourceLoader {
    private readonly namespace;
    private readonly prefix;
    constructor(options: KvResourceLoaderOptions);
    loadResource(path: string): Promise<Uint8Array | null>;
}