import { IncomingHttpHeaders } from 'node:http';
export declare const fromChecksum: (checksum: string) => Buffer;
export declare const fromMaybeArray: <T>(param: T | T[]) => T;
export declare const getAppVersionFromUA: (ua: string) => string | null;
export declare const getUserAgentDetails: (headers: IncomingHttpHeaders) => {
    deviceType: string;
    deviceOS: string;
    appVersion: string | null;
};
