import type { NostrEvent, OkResponse, ReqCommand, TaggedNostrEvent } from "./nostr";
import type { CacheRelay } from "./cache-relay";
import type { Connection } from "./connection";
/**
 * Use a regular connection as a CacheRelay
 */
export declare class ConnectionCacheRelay implements CacheRelay {
    #private;
    readonly connection: Connection;
    static isInstance(obj: unknown): obj is ConnectionCacheRelay;
    constructor(connection: Connection);
    event(ev: NostrEvent): Promise<OkResponse>;
    query(req: ReqCommand): Promise<Array<TaggedNostrEvent>>;
    delete(req: ReqCommand): Promise<string[]>;
}
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