// Versions older than 91 cannot use the API getImportableSymbolReferencesForDocument
const sketch = require('sketch')
const libraries = require('sketch/dom').getLibraries()
let Library = require('sketch/dom').Library;
let curLib = Library.getLibraryForDocumentAtPath('/Users/liyang/Downloads/demo.sketch')
const symbolReferences = curLib.getImportableSymbolReferencesForDocument(
curLib.getDocument()
);
console.log(symbolReferences); // []
