printBarcode method
Implementation
Uint8List printBarcode(int m, int n, String content) {
// Initial command with barcode type `m` and additional parameter `n`
Uint8List data = Uint8List.fromList([29, 107, m, n]);
// Convert content to bytes
Uint8List text = strToBytes(content);
// Merge the data and text arrays
data = byteMerger(data, text);
return data;
}