import type { Auth } from './auth.js';
export declare class Kv {
    private readonly appId;
    private readonly apiBase;
    private readonly auth;
    constructor(appId: string, apiBase: string, auth: Auth);
    /** List all keys for this user. Optionally filter by prefix. */
    list(opts?: {
        prefix?: string;
        signal?: AbortSignal;
    }): Promise<string[]>;
    /** Fetch multiple keys in parallel. Returns a Map of found key-value pairs (skips failures and missing keys). */
    getMany<T = unknown>(keys: string[], opts?: {
        signal?: AbortSignal;
    }): Promise<Map<string, T>>;
    /** Get a value by key. Returns null if not found. */
    get<T = unknown>(key: string, opts?: {
        signal?: AbortSignal;
    }): Promise<T | null>;
    /** Store a JSON-serializable value under the given key. */
    set<T = unknown>(key: string, value: T, opts?: {
        signal?: AbortSignal;
    }): Promise<void>;
    /** Delete a key. No-op if the key doesn't exist. */
    delete(key: string, opts?: {
        signal?: AbortSignal;
    }): Promise<void>;
    private request;
}
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