I have installed [rangy](https://www.npmjs.com/package/rangy) in a Angular2+ application. It appears that the function "rangy.resoreSelection" is not found. I've also installed the types: https://www.npmjs.com/package/@types/rangy https://github.com/timdown/rangy/wiki/Selection-Save-Restore-Module `import * as rangy from 'rangy';`