/** Opaque `qrcode` (soldair/node-qrcode) surface kept optional for core-package consumers --
*  narrowed by an application that installs the peer to that peer's own types. */
export interface QrCodeApi{create(value:string,options?:Record<string,unknown>):unknown;}
/** Uncached worker -- `importQrCode` is injectable for tests. Tolerates either a `{ default }`
*  ESM interop shape or the module itself already being the API, matching `papaparse`'s own
*  dual-shape tolerance (`qrcode`, like `papaparse`, is a CJS package resolved differently by
*  different bundlers/test harnesses). */
export declare function loadQrCode(importQrCode?:()=>Promise<unknown>):Promise<QrCodeApi|null>;
/** Cached accessor -- the actual dynamic `import('qrcode')` and its resolved API are shared
*  across every caller instead of each instance maintaining its own independent cache. */
export declare function loadQrCodeCached():Promise<QrCodeApi|null>;