import { TEKSignatureList, TemporaryExposureKeyExport } from '../proto/export.js';
export declare function loadKeys(fileContent: Buffer): TemporaryExposureKeyExport;
export declare function loadSignature(fileContent: Buffer): TEKSignatureList;
export declare function loadZip(fileContent: Buffer): Promise<{
    keys: Buffer;
    signature: Buffer;
}>;
export declare function riskCount(temporaryExposureKeyExport: TemporaryExposureKeyExport, transmissionRiskLevel: number): number;