import type { INPrinterScanControllerCallback } from './INPrinterScanControllerCallback';
export declare class NPrinterScanController {
    private static callback;
    private eventEmitter;
    private eventDeviceFoundListener?;
    constructor(callback: INPrinterScanControllerCallback);
    startScan(): Promise<number>;
    stopScan(): void;
    private deviceFound;
    private registerEvent;
    private unregisterEvent;
}
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