part of '../printer.dart'; abstract class IPrinterRepository { Future> connectBluetooth(String macAddress); Future> disconectBluetooth(); Future> isBluetoothEnabled(); Future>> getPairedBluetoothDevices(); Future> createPrinter(Printer printer); Future> updatePrinter(Printer printer, int id); Future> deletePrinter(int id); Future> getPrinterByCode(String code); }