Using sketch api as Program, not plugin
I'm trying to make a program
automatically genrates some shape using sketch & sketch plugin,
AFAIK, sketch api seems only available in plugin level.

the plugin program could only be accessed via sketch app.


what i want is something like this.

* ignoring syntex


index.js
```
sketchfile = read("myfile.sketch")
artboards = sketchfile.getAllArtboards()
for ab in artboards:
    ab.saveAsPNG("~/Desktop/imgs")
    
```


and run this script, independently. without building as a plugin


is that possible?
