qrencode                Return a QR encoded string as a matrix
qrencode_df             Return a QR encoded string as an x, y, z
                        data.frame
qrencode_png            Return a QR encoded string as a base 64 encoded
                        inline png
qrencode_raster         Return a QR encoded string as a raster object
qrencode_raw            Encodes a string as a QR code
qrencoder               Quick Response Code (QR Code) / Matrix Barcode
                        Creator
