import type { DBEnvironment } from '@nangohq/types';
declare class HmacService {
    private algorithm;
    verify({ receivedDigest, environment, values }: {
        receivedDigest: string;
        environment: Pick<DBEnvironment, 'hmac_key'>;
        values?: (string | undefined)[];
    }): boolean;
    computeDigest({ key, values }: {
        key: string;
        values?: string[];
    }): string;
}
declare const _default: HmacService;
export default _default;