**Image to ZPL**

Getting output from the command line

```javascript
const ImageToZPL = require('./index');
ImageToZPL('./libs/home.png').then(zpl => {
	console.log(zpl);
});
```

Saving output to a file.

```javascript
const ImageToZPL = require('./index');
ImageToZPL('./libs/home.png', './libs/home.zpl');
```