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print QR code beta

use

init: init the command
setQRCode: This command is used to print the QR code
setPrint: execute print

js

import printease from 'printease'
let zpl = new printease.zpl.ZplLib()
zpl.init()
zpl.setQRCode(10,10,'123456789',2,10)
zpl.setPrint()
console.log(zpl.getBuffer())