import type { Connector, ConnectorId, FetchUsageOptions, UsageRecord, PingResult } from './types.js';
export declare abstract class BaseConnector implements Connector {
    abstract id: ConnectorId;
    abstract name: string;
    abstract is_real: boolean;
    protected safeFetch(url: string, init: RequestInit, byok_key: string): Promise<Response>;
    protected fingerprint(key: string): string;
    abstract fetchUsage(byok_key: string, opts: FetchUsageOptions): Promise<UsageRecord[]>;
    abstract ping(byok_key: string): Promise<PingResult>;
}
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